We have been disappointed with our in floor system since when we got the pool put in almost a year ago and my husband thinks the drain has no suction. I was told that the suction is inside the drain where we can't feel it since it's a safety feature. there is also a drain on the side of the pool. When we look in the drain there is dirt/sand in the bottom of the drain that either hasn't gotten sucked into the DE filter yet or it's taking a while. We just looked at it today for the first time. We've always complained about dirt sitting around the drain and never making it in the drain. My husband hand vacs the pool almost on a weekly basis. The pool company told us we had too much dirt in the backyard and it'd never be clean until we put in grass. Grass has been in since the winter and it still takes a while to get to the drain and I'd have to look, again, to see if it all ever gets to the drain. i don't think it's ever been crystal clear and Calpools agreed that there might always be a little bit of dirt on the bottom. i think i remember him saying once sand is too heavy but it will eventually make it to the filter. we have sandy/clay dirt so there's not much we can do about it not getting in the pool. He said the pipes would never get plugged but I want to make sure I am educated when we get them to come out as they keep saying it's fine and paramount won't come out until calpools does first and calpools said if it's a maintenance issue they'll charge us a service charge for the visit so i've never had them come out but we're thinking of it now. Also, to give me a good idea of how the in-floor works, they said after a dust storm if we just relied on the in-floor alone it might take a mth to clean it. i had no idea it was known to be that slow working on their side. what's this 99% clean warranty anyway?