Foaming can be caused by a number of things:


Often in cases of vandalism, detergent or some other foaming agent is added to pools, spas or fountains. If the foaming is very bad, it is often the best remedy to drain water, especially in the case of fountains, where there may not be much to drain. In pools, since swimmers are entering the pool, it is necessary to determine what caused the foaming. If it was laundry detergent, this should break down over time. SpaGuard Antifoam Concentrate may be used to eliminate existing foam. But, a partial to complete drain may be the best solution to quickly eliminate foam. In cases where the foreign contaminant cannot be determined, it may be best to drain completely to avoid potential health hazards.

Pool Surface Cleaners and Detergents:

These products can foam if they are accidentally spilled in the pool. This foam will dissipate in a few days as the product breaks down. Antifoam Concentrate may be used to eliminate existing foam.


Pool owners may report foaming with algaecide use. This is normal, especially during the few days immediately following an application, but can be more like soap suds if too much is applied. Some foaming is normal and is not at all harmful to the pool or to swimmers. The foam will usually dissipate within 10 days to two weeks as the product breaks down. SpaGuard Antifoam Concentrate may be used to eliminate existing foam.

Air Leak:

If there is an air leak in any of the intake lines, air will become mixed with the water and can create foaming. Have a qualified professional inspect and repair the lines if necessary.

NOTE: In any of the above cases, if the foaming is severe enough, a partial drain will help to quickly dilute water and eliminate or reduce foaming.