Why does cloudy stuff keeps coming back to my pool after few days?
I am getting frustrated fixing my pool, I even call for a professional service to fix it and even them is about to give up. There was algae in the pool, the service guy did the algae removal service and tried to run the pump 24 hours for few days. He even replace for a new cartridge filter. After 3 days, the pool cleared up with sparkling blue.
After 3 days
There are two suction point, the skimmer and the cleaner. He pulled out the hose from the vacuum cleaner out of the pool so the vacuum line cap closes and now its only sucking water from the skimmer. Then suddenly greeny and cloudy stuff starts coming out from the return jet. NOw my entire pool is back to cloudy again. It looks like the stuff that got filtered starts coming back to the pool, what did just happen? the cartridge filters are new. It seems like when he pulled the hose something happen and the stuff that was in the filter housing got a way back to the pool. My service guy couldnt even figure out.
When you removed the cartridge filters and kinda easy and loose. I do not know if it should be like that or if it should snug tight or something is missing. The service guy did the cartridge replacement and didnt say anything about it as loose. Coz it could be that the stuff that needs to be filtered are going through that part where the bottom of the filter is sitting loose on the manifold, especially if there is a lot of pressure.
Also notice that the pressure gauge always shows above 20psi, there's even a time when it got reach to 30psi but it never went down 20psi.
My filter housing is Hayward C4000H with filter CX870XRE
Pool 15 gallons