We just bought a house with a pool this year. We had some problems recently getting rid of algae and cloudy water and decided to get a new filter. We installed it this past Saturday and the water finally cleared up.

I shut down the pump and filter for the first time today. When I started it back up there was dirty, cloudy water coming through for 5-10 minutes before it finally cleared up. It also did this when we first started up the system after installing the new filter, but we chalked it up to sediment in the lines since we had such a horrible time prior to purchasing the new filter...but now I'm not so sure.

We have a 40,000 gallon inground concrete pool. The filter is a sand filter using Zeo sand. We backwashed according to the directions before we began filtering. We also followed directions when filling the filter with the sand by adding water first and pouring the sand in carefully. Pressure has remained good at about 18 psi since startup on Saturday.

Any ideas?