I have an above ground pool (24' round) with a Polaris 65 cleaner. Pool looks great and water is crystal clear. However, every time I "unhook" the polaris from the pool wall outlet, there come a great "brown" cloud. This has been doing this all summer.
I have a sand filter and thought it may be broken internally, but it is only 1 year old and does filter the pool correctly. I have tried backwashing for 5 minutes past clear and then rinsing 5 minutes past clear. It doesn't seem to make a difference. Once backwashing and rinsing are done, I unhook the polaris and bingo....here comes the cloud.
I even added DE powder to my sand filter to see if it was just missing some "algae". No help. Looks like the same amount to me.
It seems that the polaris is somehow creating a stagnant water area in the top of my filter valving and it doesn't shoot out even though the polaris seems to be running strong. What would cause the brown cloud to not come through the polaris. It only comes out when unhooked. It is just annoying to have a "sparkling" pool and then see a huge cloud shot into the center of it.