It is not advisable to drink tap water anywhere on Koh Samui. 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 on Koh Samui.
The water quality on the islands 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 to broken and leaking pipes in the water distribution network. Other times it might be low levels at the water source and 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 on Koh Samui are the same as in most 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:
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:
All our systems come with an integrated high-flow sediment filter to remove coarse and fine sediment and make your water crystal clear.
The second stage is a highly effective Active Carbon block filter to remove unwanted taste and odor and reduce chlorine and other chemical residue.
Viruses and bacteria receive 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
Kat-Tech Engineering works together with our authorized local partner, Greenhouse Engineering, to provide installation and maintenance support for whole-house water filtration systems on Koh Samui.
Greenhouse Engineering has experience with residential water systems, electrical installations, and property projects across the island. Whether you are building a new home, upgrading your water quality, or looking for a long-term maintenance solution, the local team can assist with system recommendations, installation, and ongoing support.
Contact us to schedule a free survey and quotation for your property on Koh Samui.
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 Koh Samui since 2008.
We’ve answered some of the most commonly asked questions we get about installation and operation of our house water filter systems on Koh Samui. If you can’t get the answer you need here, simply get in touch.
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 offer installation and maintenance of our water filter systems through our authorized local partner, Greenhouse Engineering. Through our scheduled maintenance program, our local team can inspect your system and perform maintenance as needed. Contact us to schedule a free survey and quotation.
Yes we do.
Yes, absolutely. In fact, municipal water on Koh Samui 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.
