Foaming water is primarily caused by swimmers stirring and agitating the water. But then the water usually becomes transparent once the swimmers leave the pool.
On the other hand, if this foam does not disappear even when the pool is unused, don't worry; it can be easily explained and solved in a few steps.
Often, simply asking bathers to take a shower may be enough to solve the problem.
If this doesn't work, remove as much foam as you can, adjust the pH between 7.0 and 7.2, with hth® pH PLUS POWDER to increase the level or hth® pH MINUS MICRO-BALLS to reduce it. Then use the product hth® SPA ANTI FOAM.
If you have recently used a foaming anti-algae treatment, remove as much foam as possible and add water to reduce the proportion of the anti-algae, then use the product hth® SPA ANTI FOAM.
In the future, use a non-foaming anti-algae treatment such as hth® SUPER KLERAL.
That soft water foams more easily than hard water?