My AGP has an awfully small vacuum adapter hole below the in-wall skimmer. Then, it gets even smaller when INSERT the hose into it. It's causing my pump basket to drop water level, either through leaks or through "cavitation". That doesn't happen during normal skimming operation. So, that suggests I'd get better results with a larger hole below the in-wall skimmer.
Anyone know of a way to do that?
My skimmer is an older deluxe Doughboy.