Frequently Asked Questions About Swimming Pools in Thailand
Looking for clear answers about swimming pools in Thailand? This FAQ covers the most common questions about pool construction, costs, equipment, and maintenance. Whether you’re planning a new pool or already own one, you’ll find helpful tips based on years of experience building and servicing swimming pools across all 20 provinces of Isaan.






This applies only to saltwater swimming pools. Most salt cells are self-cleaning, but if you notice any scale buildup, it’s best to contact our technician for advice. In some cases, the cell may need to be removed and cleaned with a mild acid solution, but this should be done carefully to avoid damage.
We test and adjust pH, chlorine, calcium, and alkalinity; check and adjust the salt chlorinator; vacuum the pool; brush the walls and waterline; skim surface debris; backwash the sand filter or clean the cartridge; clean the pump basket; inspect and clean the chlorinator cell; and check the automatic refill system.
First, check your chlorine and pH levels. Run the pump longer, clean the filter, and remove any debris from the pool. If the water doesn’t clear within 24–48 hours, contact us for service. We will arrive with the right chemicals to adjust the water balance and clear up the water. We will also advise you about the correct running time for your pump and filter, and if needed, check the condition of the sand inside your sand filter..
Calcium hardness needs to be balanced. If it’s too low, it can make the water “hungry” and cause it to dissolve calcium from the pool surface, damaging tiles and grout. If it’s too high, it can cause scaling on tiles, pipes, and equipment. We check calcium levels on our service visits and adjust them by adding calcium increaser or by diluting the water if it’s too high.
Zelbrite, also known as zeolite, is a natural volcanic mineral used as premium filter media. Compared to standard sand, it offers much finer filtration, capturing particles as small as 3 microns (versus around 20 microns with sand), resulting in clearer water and fewer chemical adjustments
Less backwashing needed — saves up to 50% water because of its higher dirt-holding capacity.
Improves water quality — helps remove ammonia and chloramines, reducing odors and skin or eye irritation.
Many commercial facilities and swim schools choose Zelbrite to deliver top-quality water and reduce maintenance costs.
No special equipment is needed and no modifications are required. Zelbrite works in all standard sand filters. In fact, because of its superior filtration capabilities, you’ll typically backwash less often, extending the time between cleanings.
A variable speed pump can run at different speeds instead of just on or off. For normal daily circulation, it can run at a much lower speed, which uses far less electricity, and only run at high speed when needed for cleaning, backwashing, or special features. This can reduce your pool pump’s power use by up to 50–70%, which means big savings on your electricity bill. It also makes the pump quieter and can extend the life of both the pump and other pool equipment.
Yes, in many parts of Thailand, especially in rural areas, the electricity supply can have voltage drops or sudden spikes. These can damage pumps, chlorinators, and other pool equipment. To prevent this, we supply our pump room control boxes with built-in voltage protection. This helps protect your investment and keeps the system running safely even when the power supply is unstable.
