Effective Water Softener Installation in Oahu

If you have hard water in your home and are looking for a long-term solution, installing a water softener may be the answer you need. At All Aloha Plumbing, we provide water softener systems that will help combat the effects of hard water. We are a locally owned and operated plumbing company with a strong reputation in the Oahu community for professionalism and attention to detail. We want your household water to be safe, clean, and free from any contaminants, and we will always go out of our way to put a smile on your face.

Are you looking for high-quality water softener service in the Oahu area? Get in touch with us with us today to find out how we can help.

Signs You Need a Water Softener 

If your household water supply has elevated amounts of minerals like calcium and magnesium in it, you may have hard water. Hard water in itself is not something that’s dangerous, but there are some unpleasant side effects that most homeowners would rather avoid. Limescale, which refers to a white residue, can form on kitchen faucets, bathroom faucets, cooking utensils, and other plumbing fixtures that come into regular contact with your water. 

You may also notice that soap and shampoo don’t lather as easily, or your clothing might feel stiff and tough after you’ve done laundry. Some people also report having dry or brittle hair when they have hard water in the house. If you experience any of these signs, don’t hesitate to get in touch with us so we can come out and assess the situation.

We Know How to Fix Your Hard Water 

When you get in touch with our team at All Aloha Plumbing, your hard water issues will soon be in the past. We will come out to test your water and then provide you with the appropriate water softening solution. You may come across alternative ways to try and remedy the problem, but only a whole-house water softener will allow you to use water from any faucet in the house and not have to worry about the effects of hard water. Be sure to get in touch with us, so we can go over your options with you.

Why Work with Us?

When you work with us, you can feel confident that your ‘water softening questions will be answered as quickly as possible. We also offer memorable customer service that will make you want to tell all your friends and neighbors about us. As ‘The Plumbers with Aloha,’ our goal is to spread the spirit of Aloha in everything we do, and we will always make a point of treating you just like a member of the family. Here are some additional benefits of working with us:

24-hour emergency service
Convenient financing options
Honest and upfront pricing with no hidden fees
Courteous plumbers who treat your home with respect
$50 off any plumbing service
$100 off water heater install
$75 off hydro jetting
Senior citizen & military discounts

FAQs

A water softener is a device that treats hard water by removing minerals, primarily calcium and magnesium ions, which can cause various issues in your plumbing, appliances, and daily routines. Here’s what a water softener does:

  • Ion Exchange: Water softeners use a process called ion exchange, where resin beads attract and remove calcium and magnesium ions from the water, replacing them with sodium or potassium ions.
  • Prevents Scale Buildup: Hard water minerals can form scale in pipes, faucets, and appliances. A water softener prevents this scale buildup, extending the lifespan of plumbing and appliances.
  • Improved Cleaning: Softened water improves soap lathering and reduces soap scum, making cleaning more effective.
  • Efficient Appliances: Softened water helps appliances like water heaters and dishwashers work more efficiently, leading to energy savings.
  • Softer Skin and Hair: Softened water can lead to smoother skin and shinier hair due to reduced mineral buildup.

Installing a water softener can provide numerous benefits by addressing the challenges associated with hard water, promoting efficient water use, and prolonging the life of plumbing and appliances.

Drinking water from a water softener system can be safe for most people, but there are a few considerations to keep in mind:

  • Sodium Content: Water softeners replace calcium and magnesium ions with sodium or potassium ions. If you’re on a sodium-restricted diet, you might want to consider the sodium content in the softened water.
  • Taste: Some people find that softened water has a slightly different taste due to the added sodium or potassium ions.
  • Mineral Intake: Softened water might have reduced levels of calcium and magnesium, which are important minerals for bone health. If you rely on your water as a source of these minerals, you might need to supplement your diet.
  • Health Conditions: If you have specific health conditions or concerns, it’s a good idea to consult a healthcare professional regarding the suitability of softened water for your needs.

In most cases, softened water is safe to drink. However, if you have specific health considerations, it’s wise to consult a healthcare provider before making a decision.

The best water softener to buy depends on your specific water quality, household size, budget, and preferences. Consider the following factors:

  • Water Quality: Test your water to identify the hardness level and other contaminants. This will help determine the appropriate size and type of water softener.
  • Capacity: Choose a water softener with the right capacity to meet your household’s water usage needs.
  • Type: There are salt-based and salt-free water softeners. Salt-based systems are more effective for higher hardness levels, while salt-free systems are suitable for moderate hardness.
  • Brand and Reviews: Research reputable brands and read user reviews to gauge performance and reliability.
  • Budget: Determine your budget and consider ongoing maintenance costs.
  • Warranty and Support: Check for warranties and the availability of customer support.

Consulting with a water treatment professional can help you select the best water softener for your specific requirements, ensuring efficient performance and optimal water quality for your household.

While a water softener primarily addresses issues related to hard water, it indirectly offers several health benefits:

  • Softer Skin and Hair: Softened water reduces mineral buildup, leading to smoother skin and shinier hair.
  • Better Hydration: Some people find softened water more pleasant to drink due to its improved taste and reduced mineral content.
  • Reduced Irritation: Softened water can be gentler on sensitive skin, reducing dryness and irritation.
  • Cleaner Laundry: Softened water improves the effectiveness of detergents, resulting in cleaner and softer clothes.
  • Longer Appliance Lifespan: Softened water reduces scale buildup in appliances like water heaters, extending their lifespan and efficiency.
  • Energy Savings: Appliances like water heaters and dishwashers work more efficiently with softened water, potentially leading to energy savings.

While these benefits can contribute to overall well-being, it’s important to balance them with factors like sodium intake and potential mineral deficiencies. Consultation with a healthcare professional can help determine the suitability of softened water for your specific health needs.

If you’re looking for dependable water softener system installation in Oahu, get in touch with us with us today to schedule an appointment.

Book Your Service






    Connie Mark
    We found Kawika and helper to be great workers. They installed and updated our solar water heater. They also fixed our water pressure box.
    Scotty Wong
    Tech went above and beyond. Checked everything and solved a very unusual and difficult problem.
    ERIN RODRIGUEZ
    Awesome service.
    Jerimy Stangeland
    Tevita was able to come out the same day, assess the situation and fix the issue in a timely manner. He was very professional, understood my concerns and gave me his honest opinion before work was performed. I will definitely contact All Aloha Plumbing again for any other plumbing needs that arise. Mahalo for the great work!
    Rita Domanay
    All aloha plumbing is the best plumbing company I have ever used. We will only use them! Deven and his team are doing a water repipe because we had a very big leak. They are clean and professional. If you need a plumber call them.
    Tina Lee
    very nice guy, positive attitude…professional, courteous…thank you Joseph
    charlene mino
    Ray is the pest! Very helpful and knowledgeable. He went out of his way to help us not break the bank!!!!!!!! Appreciate you!!!!
    Jeanette Tanaka
    I received prompt friendly service for same day call. Chris was very helpful in assessment of problem and I'm very appreciative for his help.
    Arleen M
    Great service.I was very impressed with the conscientious workers of Zachary and Josiah!Arrived on time at the given time. With tax season upon us, they worked with me giving me three estimates and worked with me with the final cost.What's a little his hesitant at first but I am so glad I went with aloha plumbing.
    Greg Montgomery
    kawika was a superstar, very knowledgeable and great at hos job. he worked Easter Sunday to get our problem fixed
    Jon Kealakai
    My compliments to a job well done. All Aloha Plumbing employee “Ray” did a great job replacing 2 valve packing for my hot and cold water. Ray inspected /analyzed the problem than gave me options of replacing with matching prices. He than explained results of each if I decided to go with it. It’s a bit pricey but worth the experience and knowledge that this technician has. Ray was even able to give me senior citizen and war veteran discounts. I would definitely use All Aloha Plumbing in the future and recommend them to my friends. Thank you for your professionalism. Aloha
    Nohea Chadwick
    Was very friendly and fast service. Gave in-depth explanations to options as well as his recommendation for further assistance. Communication was excellent arrived right on time.
    Jarden Torcuato
    It’s such an awesome experience getting to work with people who truly care and go above and beyond to help remedy an unfortunate situation. Ray and Keoni really educated me on the inner workings of our houses plumbing. Unfortunately, we need to cut into our foundation to replumb most of the house. Had I not called these guys it would’ve taken me forever to figure this out. So thankful for these guys and will have them come out when we finalize our foundation issues to redo our plumbing.
    Alvin Barayuga
    Joseph was professional and thorough.
    Tiwanak Eric
    They were very personable, courteous and knowledgeable.
    Loretta Beralas
    Your technician, Tavita, was very informative in explaining the process, assessment and solutions to my bathroom toilet leak and wash basin line leak repair needs clearly. He answered my questions in an easily understandable manner. Very professional in completing the repairs and clean up after wards is appreciated very much. He also explained very well the costs to complete the repairs. In regards to future repairs All Aloha Plumbing is at the top of my list.
    Rodney K Suzuki
    Joseph was knowledgeable and very customer friendly. Very thorough in explaining what needed to done. Very much appreciated the cleanup post repair job. His partner Shack was good too. And while this was costly repair it was done efficiently and I am very pleased with the result. Big Mahalo
    Scott
    Had a water leak so they came within 30 min of. calling. My apartment was flooded due to a leaky shower valve. All Aloha Plumbing was recommended to me by a friend and they did a great job. Tavita and Josiah was both very friendly and knowledgable. Emergency call and they came through so no complaints. Better than a flooded out apartment. Definitely will call them if I ever have plumbing issues again.
    Barbara Deparini
    Rey fixed the leaking shower, replaced master bedroom toilet flapper, changed kitchen sink fixture. Everything was kept clean. Work was neat and successfully completed (no leaks). Enjoyed working with him. Would use them again, if needed.
    Carol
    The plumber, Tyi came out promptly and was very professional explaining my situation and recommended what needs to be done. My drainage was cleared and gave tips on keeping my kitchen pipes cleaned. The company cust service person also followed up immediately and wanted to make sure that I was satisfied with the service performed. Great service provided and highly recommend!
    Ian Ross
    Aloha Plumbing was fast, efficient and knowledgeable about my plumbing situation.Joseph Ahia was effectively engaged with giving me the best option, and price with repairing the faucet . He made the original system that was built with the house 30 years ago, more modern and durable. I am very pleased with Joseph and the customer service at All Aloha .Mahalo Much.Ian Ross
    bada55teru
    Very professional service. Excellent work. Will last a long time.
    Nani JC
    Mana did a great job, he was quick and respectful. Prices ranged from 500$-1400$ that I could choose from depending on how much I wanted him to do. I expected it to cost less than $500 and below from talking to the dispatcher about what the problem was. I already explained I wasn’t in anyway I was going to spend anything over 1000. They do offer payment plans which I don’t do because I don’t want to be in debt. But it may be a good option for others. On the plus side Mana is a good plumber and was able to fix my issue with my shower handle for the cheaper price. I paid about $487. He was fast. In and out in about an hour. Walked around and gave me discounted offers for my water heater and dish disposal.Re-rating my experience from 4 star to 5. After receiving a call from customer service. Devin offered me 50$ back. He is wonderful. Thanks so much for everything.Re-rating, i never got that 50$
    JUSTIN FUJIKAWA
    Quick work great service found the leak quickly
    Heidi Ishii
    Tyi was great…he provided me with options regarding the job and why he recommended each option along with the price. He took the time to tell me if I needed something changed and the price before proceeding with the service
    Toni Figueroa
    Ma ka ōlelo HawaiʻiUa hana maikaʻi loa ʻo Joseph Ahui i ka hoʻololi ʻana i kā mākou halepaku hū! Hāʻawi ʻia ʻo ia ka hale lua mua mai ka wā i kūʻai ai i ko mākou home i ka makahiki 1990, ʻoi aku ia ma mua o kona ola ʻana.Ua wehewehe ʻia ko Joseph ʻike paipu me ka mahalo nui a me ka ʻoihana a ʻoi aku kona mākaukau. Ua hoʻopau ʻo ia i ka hana i ka manawa liʻiliʻi ma mua o ka mea a mākou i manaʻo ai. Pololei kēnā! Hana maikaʻi! Hōʻike ʻo ia i kona haʻaheo loa i kāna hana.Mahalo piha!Joseph Ahui did a great job replacing our leaky toilet! Given that it was the original since we bought our home in the 1990, it has outlived its usefulness.Joseph's plumbing experience is was explained with respect and professionalism and he is very professional. He completed the job in less time than we expected. That's right! Well done! It shows how proud he is of the work he does.Thank you to the fullest!
    Brian Rodgers
    Tech worked tirelessly and was informative throughout. Verified work at the end and was meticulous and constantly cleaned up behind himself. This was not a small job. This was a three thousand dollar and three hour project. On another positive note, this man came out both yesterday, Sunday and today, Presidents Day. Our plumber was a competent expert.
    Christine Rivera
    Amazing working, very professional, detailed in explaining what would be done and on time as said! Very satisfied with the work provided!
    Annastasia Debibar
    Great service and very friendly I would recommend they get the job done
    Nelson Omoto
    Joseph was very professional & did an awesome job. Fixed the clog and informed me of different options to future maintain old pipes. Job well done, I would highly recommend!
    Iwie Tamashiro
    We are return customers to All Aloha Plumbing and each time your plumbers were great! Thank you for assigning Joseph to our rescue!! He find him to be trustworthy, personable and more importantly, he does an excellent job!
    Olulani Garcia
    The office staff are courteous and honest in letting you know what the different price ranges are going to be depending on if you need it fixed ASAP or if it can wait for a regular weekday appointment. The technician Kawika was awesome in explaining the various options and exactly what he was doing, also how to at home/DIY trouble shoot some of the easier fixes before making that call out for help again. Thank you Aloha Plumbing and Drain team!
    Brian Spalding
    Mana and Steve did a great job changing the outside water valve and previously Mana changed out a toilet fill valve. Mana was very knowledgeable with plumbing systems and equipment. He also diagnosed and suggested some needed improvements to our old plumbing fixtures and hardware. In the future, I would like to have Mana return for repairs where needed. I trust his extensive plumbing knowledge and hand working performance.
    Mario Domingo
    Kavica did a great job in replacing my water heater. Very well customer service oriented plumber. Keep up the good job Kabika.
    Richard Goto
    Mana was very professional and knew how to solve the problems that arose during the job, and gave suggestions how to solve problems.
    Larry “InThe808” Davis
    Aloha plumbing, courteous, professional and a great price.
    Dean Masai
    We highly recommend All Aloha Plumbing for your plumbing needs. When our sink and washer drains were overflowing, Tyi from All Aloha Plumbing did a super job cleaning out the pipes. He used special tools to clear the pipes and showed us the gunk that was clogging the drains. He also instructed on how to maintain our drains so they would not get clogged. Thanks to his patience, professional skills, and focus, we no longer have to worry about clogged drains at our house.
    Daniel Miyashiro
    Please extend our thanks to Kawika for his outstanding work in repairing a pipe leak in our hot water system. Kawika did the work in a very timely and professional manner. He showed much care when handling fragile parts in our system. In addition, he answered all of our questions in an easy to understand way. Excellent job, Kawika! We appreciate your service.
    Joseph Salvador
    I just had work done by Kawika... he was great and showed lots of aloha ....excellent plumber. He discovered and explained the cause of my problem thoroughly. I truly appreciate a business that comes on a Sunday evening! My only regret, I just saw as I came here to write my review that your business offers a senior discount. I think I would qualify at age 64? Lol! Thank you again for your great service! I definitely will use your company for all my future plumbing needs and pass on my positive experience with friends and family.
    Mel “mel” Y
    All Aloha Plumbing was easy to schedule and service was quick. Of course payment was costly but worth not having to stress about situation. I'd use them again in the future. Mahalo guys!!
    Robert Dale
    I really like the way all aloha does business.The scope of work was clearly stated as well as the price.Clearly a professional organization.
    Derek Yee
    Joseph was able to arrive a little early. He was friendly and got the job done quickly.
    Lynn Graybeal
    Kawika provided outstanding, thoroughly professional service on this project to evaluate and replace a sewerline. He demonstrated high level of competence from the outset. He was on time, organized, efficient and effective in his work. He maintained a safe, neat, uncluttered work site. He took great pains to minimize the damage to our recently landscaped space and devised a way to avoid demolition of a pond. He kept us informed at the right moments throughout the work and explained everything clearly. We recommend him without reservation.
    Anna Pasion
    Had an appointment for 12 noon, was lucky enough to have a technician come over 1 1/2 hour earlier. Joseph was able to address our problems and gave us options to fix the problems without any pressure. Will be calling them again.
    Les Kwock
    Great experience and service! Always treated with courtesy and professionalism! Last minute emergency was accommodated and technician was so efficient in his work and also answered all our questions!
    Rachael Tagupa
    Kawika responded prior to my scheduled appt n did an excellent job !I highly recommend Kawika for yr needed repairs !!Good,efficient quality work done!😁Aloha 🌺Happy New Year!!
    Vanessa White
    Mahalo Ke Akua for Joseph Ahia, he did an amazing job with our emergency toilet leak at our unit at time we needed it the most, our trip to Japan was coming up and unfortunately the toilet needed to be repaired, his professionalism and knowledge gave us peace mind and understanding that the job is completed, given the circumstances, also shout out his supervisor Keone Campbell his guidance in helping Joe better to interact with his customers with his awesome social skills, highly recommended to all my friends and family All Aloha Plumbing 🤙🏽👍🏽👌🏽
    Brittany Awana
    Tyi was very professional and dedicated to resolving the issues in my shower. I am very appreciative of his effort and hardwork.
    Jonathan Kunimura
    We had an emergency water leak at our apartment tower in the middle of a Sunday night, and my staff were frantically calling every on-call emergency plumbing service on the island--All Aloha Plumbing was the only one that answered the phone line quickly, followed up immediately and actually sent a technician over. Joseph arrived, literally, about fifteen minutes after I hung up the phone and was extremely professional, efficient and got the situation under control in no time. I will absolutely use this company for all future plumbing emergencies at all of my properties.
    Cake Works
    Rey is knowledgeable, friendly and easy to work with.I appreciated his help to get our water heater replaced!And then Mike came and helped us with an overflow issue in our sewer line. He even helped with clean-up!Mahalo to All Aloha Plumbing for your timely, friendly and professional service!
    Jean Suzuki
    Our situation occurred at 2:00 a.m. and 2 other companies failed to locate an available technician, even through they claimed 24/7 service. All Aloha was true to their business offering and assigned us Michael Smoker, who called in and was on the job within the hour. He was found to be very skilled, knowledgeable and tenacious in finding a solution for us. We will be signing up for their commercial maintenance program, due to their dedication, professionalism and good work.
    iwa maner
    Overall Amazing & so Professional group of humans at All Aloha Plumbing. From start to finish technicians kept me informed of their every step of progress.If you are ever in need of a plumber do not hesitate to call All Aloha Plumbing. If you are lucky to get these 3 guys Josh, Keoni, & Shack rest assure you will receive top notch service.Mahalo to a Great Team!
    CM Jazz
    Rey provided professional and clear explanations, offering multiple options. He demonstrated experience and skill in the task. He was friendly and approachable, which made it easy for me to ask questions about a topic I knew very little about.
    Henry Jessop
    Absolute descriptive in the issue that needed to be addressed and options for pricing.
    Francis Nakamoto
    All Aloha responded quickly to our needs and found the source of the leak and proposed a repair plan that appears to solve our water leak problem. We haven't proceeded with the job yet but our experience so far has been positive.
    Kathleen Shea
    Ty and Kawika were respectful and informative. Not pushy, but recommended what needs to be done and why. Hope to work with you on in future.
    Destiny Pakele
    Michael explained the problem and fix it without any issues, courteous and professional service.
    kandi amion
    Michael Stoker was fast, effective and friendly. He explained the situation clearly and did the job. Thanks again!!
    Thomas Yokoyama
    Great Service..........Jai was knowledgeable, professional and very courteous! He was able to quickly analyze the problem and give us a solution and a reasonable quote to fix the problem.Very satisfied with the service and will use All Aloha Plumbing and Drain Cleaning again!
    Donna F
    I needed to replace a water heater and having trouble finding a reasonable available plumber on short notice. What I got was much more. An understanding of different types of systems and an adjustment to the water pressure.
    Patricia Seaman
    Deven did a good job fixing our toilet.
    Edwin Yonamine
    Tarren is friendly and professional. He kept us well-informed on his process and explained the estimate in detail. He engaged in a friendly conversation to create a relationship. We enjoyed talking with him and his company. He represented the All Aloha company well.
    Buddy Maunakea
    The plumber Mana was really good and very informative. Hr took the time to answer any and all questions and concerns we had before he started his work... I would recommend this company to anyone who needs plumbing or water heater work
    Rene Tada
    Ty was very professional and did a great job!
    billie bush
    Jai came to the rescue at 10 pm. He checked the situation out and said,”Don’t worry I’m gonna clear this drain for you and get your shower and toilets working again.” Well he kept at it for a while and just like that the clogged drain was clear 👏🏽. I will recommend Jai to everybody!! He came out was so professional about it and got the job done! Much Mahalo’s🤙🏽
    Brian Nanbu
    From the time I first spoke to Gregg to the finished job with Ty, there professionalism shone through!!
    Jeff Tom
    Visiting my mom and she had a leaking bathroom sink faucet, well little more than expected but Michael helped us work through the previous patch. Went the extra mile and was able to get a reasonable price with a guarantee…confident things will work for awhile. Thanks Mike!
    Sophia Wibholm
    Came in the middle of the night and was so friendly and fixed right away, definitely recommend!
    A Sue
    Michael Smoker was very professional and quickly assessed the problem and got the new toilet, replaced and cleaned up really great!!! Greg job!!!!
    Shiloh Francis
    Jai from All Aloha Plumbing was professional and experienced in repairing our leaking pipe. He kept us up to date on his progress and answered all our questions.
    Paul LeBlanc
    Very knowledgeable and kept us informed about our options. Verified cost of services performed before beginning any work. Issue was not a simple problem but it was still resolved quickly.
    Jairus Knudsen
    Very professional and prompt response, Michael was very knowledgeable and was able to offer me solid advice and solution to my problem. Only complaint would be a touch expensive.
    Rei Takayama
    All Aloha Plumbing has exceptional service both through their call center and technicians. Their team of professionals provided seamless and prompt service while giving us different options to not only take care of our program, but also to be proactive in prolonging the lifespan of our lines. Nikki, Greg and Ty along with their whole team were top notch.
    John Beatty
    Tarin Easton did a great job replacing my hot and cold water bathtub faucets and valve stems! He was very professional, proficient, courteous and explained what he was doing every step of the way. Please thank Tarin for a job well done!John BeattyMililani, HI
    Carlton Linda Luka
    Fast. Good. Explain problems and solutionsHire Ty and pay him more
    Cody Ketchum
    Michael Smoker helped us fix our garbage disposal after typical business hours and he was absolutely amazing. He not only was timely with his work but he was very personal and professional. He walked us through the whole process and was informative throughout. Would highly recommend giving this man a raise because he went above and beyond.
    Larry Partida
    Very thorough on the initial plumbing inspection. They found an undiscovered leak under a bathroom sink.
    Wesley Okamoto
    Michael was very personable and professional.
    Heather Smith
    I called with an emergency leak and they scheduled me in for the day. But called back a short time later as they were able to see me sooner! Very professional. Quick, cleaned up, answered all my questions.
    Nicholas Lee
    Tyi from All Aloha Plumbing fixed a leak and seal issue for a toilet at our place of business in HNL Chinatown / Downtown area and was communicative and professional. Tyi clearly explained safety oversights made by the past handyman that we had used to fix a leak issue. Would use All Aloha Plumbing again. Mahalo
    Gabriella Rosen
    From start to finish they did an amazing job! I lost my earring and they responded immediately by sending someone out. Tyler did an amazing job. He found it immediately and was professional. It was easy, quick, positive, and efficient. 10/10 recommend!!
    J Lo
    Thanks to Tarin who was able to come and replace a water heater in a day’s notice. He was expedient and completed the job successfully. Our tenant is now happy that she has hot water.
    Peter Mota
    Mike did a very good job. He’s fast and he’s able to problem solve very well. Changed the water heater nipples to a different material as to prevent corrosion. No leaks… Thxs Mike
    js_loader

    Proudly Serving Oahu and Nearby Areas

    Aiea
    Camp H M Smith
    Ewa Beach
    Fort Shafter
    Haleiwa
    Hauula
    Hickam AFB
    Honolulu
    Kaaawa
    Kahala
    Kahuku
    Kailua
    Kaneohe
    Kapalama
    Kapolei
    Kunia
    Laie
    Makiki
    M C B H Kaneohe Bay
    Mililani
    Pearl City
    Pearl Harbor
    Schofield Barracks
    Tripler Army Medical Center
    Wahiawa
    Waialae
    Waialua
    Waianae
    Waikiki
    Waimanalo
    Waipahu
    Wheeler Army Airfield
    Scroll to Top