Total dissolved solids (TDS) are a measure of the amount of substance (in liquid form) in your hot tub or spa water. Total dissolved solids include, but are not limited to, everything from calcium and magnesium to carbonates, metallics and bicarbonates. If there are too many total dissolved solids in your water, the water may become cloudy and foamy. Fortunately, there are a number of ways to control this problem.
Total dissolved solids can build up in your water for a number of different reasons. Generally the biggest cause of this problem is a result of perspiration, bacteria and dead skin cells which are distributed throughout the water when you step into the tub. Once all of these particles are combined, they will form into foam and sit at the top of the water. This can be very unhealthy and should be taken care of as soon as possible.
There are a number of solutions to irradicate the foam at the top of the water, but there is only one solution which will effectively remove the total dissolved solids from your water. You can try a number of types of chemicals and defoamers but these will likely just add to the problem. When you add chemicals to your water, you are basically just adding another solid to the mix. The best way to eliminate the total dissolved solids from your water is to completely empty and refill the water in your hot tub or spa. You will have to continue to do this every three months or so, but it is definitely worth it. Your water will be much healthier and much safer for those using the tub.
Neglecting to change the water on a regular basis can severely compromise the effectiveness of your hot tub or spa. Eliminating dissolved solids totally from your hot tub water is critical in order to ensure the safety of users. Ensure your health and the health of all users and remember to change the water in your hot tub on a regular basis. This will eliminate the foam in the water and provide a more relaxing experience for everyone to enjoy.