Crystal clear water but turns cloudy once swimmers get in

[KurtV]

I'd guess you're not getting sufficient filtration. Try splitting your pump time into a morning and evening session and increasing the total time by a couple of hours (maybe 6 AM to 10 AM and 6 PM to 10 PM). If you're not brushing regularly that will help too; brush while the pump is running so that whatever gets stirred up can get filtered out.

You should probably also be running the pump when people are swimming (if you're not already). This will help get rid of the nasties the swimmers introduce and take advantage of them stirring things up.

[CarlD]

another trick:
Throw a handful of cotton balls or a chunk of sheet cotten in the catch-bag. It will act as a filter and pick up a lot of fine stuff that otherwise just goes through the mesh.

This is the one drawback to pressure-side cleaners: They don't pick up the fine stuff. A suction-side, or a PoolBuster with the silt bag, or robotics all can pick it up.

[webfeet]

Filter socks may help. I use ladies hose or knee highs. I cut the legs off about the knee on hose. I use my old clean ones. btw, I am a female. I also use one of these socks inside the polaris bag. I put the foot part of the hose in the bag, and overlap the connector part with the edge of the cut off hose or knee high. I have the fine silt bag for the polaris and this works well with it. Sometimes the hose slips off, but then it works kind of like the cotton balls that Carl mentioned. I hope this helps.