cloudy water

[SalemCastles]

Ok I have a Hayward s220 so they should work the same. The recirculate mode allows the water to by-pass the sand medium. So in doing that if the pressure is significantly lower you can point to the sand as a possible cause. You can take off the multi-valve assembly to visually inspect the sand and manually clean it out by running a garden hose in it while repeatedly pushing the hose down into the sand and letting it overflow and float the crud out of the top. You will have to disconnect all the pipes and remove the band clamp to do that. It's sometimes difficult to get the top off as there is a plastic center pipe that runs from the bottom and "slides" into the valve. You must be careful not to damage it. I would say its an advanced DIY project for most. I would start with trying the recirc mode and see if it drops the pressure and if it does then try a longer back flush ... if water is an issue then back wash it back into your pool to start with ..as you said its clear anyway. Keep a close watch and if it gets dirty you can stop it and remove the hose from the pool and continue normally. Otherwise the multi-valve might be it ... there is a rubber gasket known as a spider gasket because it looks a bit like a spider web. To get at that you remove all the screws around the top and lift it off. There are pictures here in another thread. http://www.poolforum.com/pf2/showthr...nstall&p=76320