I just bought a house with a pool last fall, and now I'm finishing up slamming the pool because it was green. Its been a week and the water is looking clear although it is still a little cloudy. I shut off my pump to rinse out the pump's skimmer basket and when I turned the pump back on, the jet shot out a brown cloud. I found out that it shoots out this brown cloud every time I shut the pump off and then turn it back on. I caught some of the brown cloud in a sock and found out that it is my filter sand.
Some background, last fall when I closed the pool I found out that the PVC pipe in the sand filter was broken and all of the sand was gone. I replaced the PVC pipe and put brand new sand in the filter.
Some ideas I have are: A bad lateral or I didn't install the new PVC pipe correctly. Is there any chance the multi-valve could be the problem? I'm debating between replacing the laterals or replacing the entire multi-valve assembly.
Any thoughts on what to do to fix this?