StevenB92
08-01-2006, 08:19 PM
I have a 13K gal pool with a Hayward Micro Clear Vertical Grid DE filter (i.e. screens) 48 sq. ft. with a Hayward Vari-Flo control Valve (filter, waste, closed, backwash, recirc and rinse positions). The pool is 6 years old and I finally tore the filter down for the very first and only time after a battle with black algae to fully clean anyplace the dead algae could hide. Yes, my bad after 6 years finally doing the annual maitenance for the first time. During the first teardown I inspected the screens and saw nothing that I would take to be a problem. The screens all looked about the same, no obvious tears or holes anywhere. Anyway I reloaded the filter and then I noticed DE drifts in the pool, I guess 1/2 pounds worth total in the pool after a day or two. I tore it down again and double checked the screens (very detailed inspection) and the installation of the screens in the manifold and again nothing appeared to be a problem. Still getting DE in the pool, about the same amount. When I did the backwash prior to the first teardown the valve was hard to "break loose" to get to move.
My questions are:
Can the valve cause the problem, some leak providing a path to the pool?
Can the screen be "worn out" due to the long time with old DE on them?
My questions are:
Can the valve cause the problem, some leak providing a path to the pool?
Can the screen be "worn out" due to the long time with old DE on them?