I know a lot of you may poo-poo this post; most of you probably feel that algae can be kept out of your pool without paying any attention to phosphates. Probably true, but for whatever reason my pool can still get yellow algae even with well maintained free chlorine levels, proper pH and periodic additions of bromine ("No-Mor Problems"). Phosphate binders seem to help, I use the the "Phos-Free" product from Natural Chemistry.
Here is my issue: Typically the phosphate binder is added to a recently cleaned filter via the skimmer. For a while after you add it, the filter pressure goes up and this requires more wattage for my variable flow pump. Sometimes the pressure stays up for quite a while and it is desirable to clean out the filter again.
Question: Does the effectiveness of the phosphate lowering product go away if you clean the filter too soon?
Thanks in advance.