It is not advisable to drink tap water anywhere in Phuket. But it is certainly possible to make the water perfectly safe to drink. In fact, you can provide your entire home with safe, clean water from all outlets. To ensure clean and safe drinking water at all times it is recommended to use a water filter in Phuket.
The water quality in Phuket can vary greatly between locations and seasons. Some areas might have a good quality municipal water supply for most of the year, but not so good quality during peak season. Sometimes issues occur due broken and leaking pipes in the water distribution network. Other times it might be low levels in the reservoirs that causes issues. Adding to this comes the risk of contamination from viruses, bacteria and other harmful microbes.
Whether you are on a municipal water supply or using your own well water it is certainly possible to take full control of your water supply and turn it into safe and pure drinking water. Although additional pre-treatment might be needed depending on your local water quality and source, the basic water treatment steps needed in Phuket is similar to other locations around Thailand.
We always recommend a 3-step treatment solution with sediment filtration, carbon filtration, and ultraviolet (UV) disinfection. Let’s quickly go through these three steps:
Virus and bacteria receives a lethal dose of UV light. The high-output UV-lamp effectively kills 99,99% of virus and bacteria including e.Coli.
Our water filter systems incorporate the three essential steps mentioned above into one complete system that can easily be installed after your water tank or water pump, ensuring clean and safe drinking water from all outlets in your home at all times
The high-flow sediment filter removes dirt, sand, silt, and other particulate matter from water. As the water flows through the filter media, particles larger than the filter’s pore size are trapped and prevented from passing through
As the water flows through the activated carbon filter, contaminants such as chlorine and volatile organic compounds (VOCs) are attracted to the carbon’s surface and held there.
The high-output UV-lamp keeps your family safe by inactivating harmful microorganisms, including those that have been found resistant to Chlorine, such as Cryptosporidium and Giardia
Designed with enough capacity to provide your entire home with safe, clean water from all outlets. Not only for drinking, but cooking, washing and showering too.
Removes the things you don’t want in your water, but preserves the things your body needs for a healthy active lifestyle.
Unlike other water treatment methods that involve the use of chemicals like chlorine, UV filtration is a chemical-free process. This means there is no risk of harmful by-products or changes to the taste or odor of the water.
Kat-Tech have been helping deliver clean water to residents of Phuket since 2008.
Posted on René Faesch10 October 2025Trustindex verifies that the original source of the review is Google. Very good company. Very good filtersystems. I will always come back.Posted on Lewis Murawski25 September 2025Trustindex verifies that the original source of the review is Google. Awesome service - I had a full house filtration system installed and can drink and wash in clean water. Very knowledgeable team, good products at fair prices.Posted on Ni Nak3 April 2025Trustindex verifies that the original source of the review is Google. ⭐⭐ ⭐️⭐️⭐️Highly Recommended! We recently had a water filtration system installed in our villa here in Hua Hin by Kat-Tech Engineering, and we couldn’t be happier! The water quality is absolutely fantastic—clear, fresh, and great-tasting. We love being able to drink straight from the tap without worrying about impurities. One of the biggest benefits is no longer needing plastic bottles, which is a huge plus for both convenience and the environment. The installation process was smooth, and the service from start to finish was excellent. Khun Nook and her team were professional, knowledgeable, and provided outstanding after-sales support. If you’re looking for a reliable water filtration system with top-notch service, we highly recommend Kat-Tech Engineering. A great investment for any home!Posted on Daniel Thom4 April 2024Trustindex verifies that the original source of the review is Google. Perfect system that means you can attach to existing taps without needing to drill or add a second dedicated tap. Can also filter before water heater to have filtered hot water too. Maintains good pressure and UV light ensures high quality drinking water.Posted on Primrose Permpoon12 March 2024Trustindex verifies that the original source of the review is Google. Good service. Fast response of customer service team. I ordered filter sending to Phuket. The team give a complete detail of how to asssmble the parts and assist to find a guy to help install the filter. Highly recommend.Posted on jinheung lee5 March 2024Trustindex verifies that the original source of the review is Google. Good brand with good services, using for 7 years, high quality water, feel comfortable with safe drink water even in phuket has water problem!Posted on NimzyPT4 March 2024Trustindex verifies that the original source of the review is Google. Great after service support and reliable.Posted on Pariyakorn Prawatklang10 January 2024Trustindex verifies that the original source of the review is Google. High Standard of clear water and test goodPosted on Jiraporn Puangthong10 January 2024Trustindex verifies that the original source of the review is Google. Good quality of water and no smellPosted on Kraipob Pangsapa5 January 2024Trustindex verifies that the original source of the review is Google. I installed VIQUA in my Bangkok house with Kat-Tech's advice. They are experienced and helped me during the design and installation process. Every year, they send me replacement filters and the UV lamp before expiration... but I pay for it... not free :)Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
We’ve answer some of the most commonly asked questions we get about installation and operation of our house water filter systems in Phuket. If you can’t get the answer you need here, simply get in touch.
Yes, we offer all our customers installation and maintenance of our water filter systems via our local partner. With our scheduled maintenance program, we will visit to check your system and maintain it as needed. Contact us to schedule a free survey and quote.
This varies greatly depending on which area you are located. Some areas experience severe problems with the water distribution that could cause contamination and very dirty water. In other areas, the water quality is quite good, but can also vary greatly depending on the season.
Often times broken main water pipes, especially during rain season will cause contaminations to enter the water distribution system.
If you use your own well or get water delivered by water delivery trucks there might be other contamination or water quality issues that needs to be addressed. Your water might be very hard, or contain a lot of iron or manganese. The treatment steps needed for each of these contaminations are different and we might need to perform some water tests to get a better idea of what treatment steps are needed.
Please reach out to us and provide us with details about your water supply, the size of your home and household and we will get back to you as soon as possible to help you find the best solution for your needs.
Yes we do.
Yes, absolutely. In fact, municipal water in Phuket is generally perfectly safe to drink when it leaves the water treatment facility. The problem is the vast network of water pipes with often poor quality that the water has to pass before it reaches our homes. This is where the water easily get contaminated by bacteria and harmful microbes.
With a UV-disinfection system that effectively eliminates these contaminations, the water is then again perfectly safe to drink.
Our systems connects to a wall outlet like other electrical appliances. The systems should always be connected to a dedicated wall outlet protected by a GFI (ground fault interrupter) /RCD. In areas that experience significant power fluctuation, we recommend the use of a surge protector.
A UV-lamp has a lifetime of 365 days of continuous use. After that, the UV-light intensity starts to diminish and it is no longer able to effectively disinfect the water. It is very important to replace the UV-lamp every 365 days to ensure that your water is still safe to drink. Our Whole Home Systems have a sophisticated control unit that will let you know the status of the system. It tells you how many days are left until lamp replacement and will give you a visual and audible alarm when the the lamp life is due to replacement.
UV lamps have a useful life of about 9000 hours (approximately 365 days) which means that in most cases annual replacement is required. It is very important to replace the UV-lamp after 9000 hours, since there may not be enough UV energy to provide adequate disinfection after that.
There is also a quartz sleeve that surrounds the UV lamp which must be kept free from hardness or iron deposits that would have a negative impact on the UV disinfection process. Under normal conditions the sleeve can be cleaned when doing the annual lamp replacement.
For our Whole House and Point of Use Systems that comes complete with pre-filters (sediment and carbon) maintenance includes replacing these when they get dirty or clogged. Replacement interval for pre-filters depends on usage and water quality in your local area and can vary from between 5-12 months.
Municipalities work very hard to provide safe water for their customers. In some areas of Bangkok, the water leaving the treatment plant is considered safe to drink. However, that water then moves through a vast distribution system that in many cases is aged and can lead to contaminations. The water that then reaches your home is often far from safe to drink. A UV Disinfection System gives you and your family peace of mind and is a very affordable insurance policy against the possibility of coming in contact with water contaminated with microbes.
Yes you can. However, in many areas of Thailand, well-water means hard water or a lot of iron, manganese or other substances in the water. In these cases we always recommend our customers to speak to us, our local partner or another local water treatment company first to get accurate information about water quality in the local area and advice on whether additional treatment is needed before installing the system.
No. The systems can be installed without a water pump if the mains water pressure is high enough in your area. However, most of our customers already have a pump installed or choose to install one to get better water pressure in the house.