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Recently I replaced the DE filter grids without any issues. Just observed that the filter is back flowing through the pump when the timer shuts off. I don't have a check valve between the pump and the filter. Could this be a problem with the multiport valve on the Pentair DE filter? The DE...

ok here's my issue: Salt pool Opened pool to liner stain. Chlorine reduced to 0- added Stain Free= clear liner overnight Added 1 qt of Jacks Magic Magenta Stuff and slowly start adding chlorine (bleach) adjusted ph with washing soda plus added CYA now 2 days later the pool water turned a light...

I have a Pentair FNS 60 square foot DE filter on an inground pool. Anyone have any problems with internal corrosion on the SS nuts that are used on the rods that holds the filter grid assembly together? The pool is a salt water pool that is just now 5 years old. Today when I disassembled the...

Had ~12" of rain on Labor day and on the 2nd time draining water out of the pool, noticed that the liner was floating in several places. Mainly the areas were at the walls, but a couple were in the deep end close to the main drain. When the pool was built I had the pool builder plumb a...

Any recommendations on some method of marking or tagging the various ball valves at the pump/filter pad? The pool builder just used a Sharpie to mark on the pipe at each valve. That marking is long gone after 3 years of weather exposure. I was thinking some type of engraved labels or tags...

Just a quick question about removing/storing the loop-loc cover. Does anyone leave the spring connectors attached to the cover straps when storing for the summer? thanks in advance!

Well finally bit the bullet and decided on a custom mesh safety cover for our inground figure 8 vinyl lined pool. Anyone contemplating this as a DIY project just needs to know that the most complex part of the whole project is the measuring phase prior to ordering. Bid the measurements out to 3...

Anyone here ever install a winter safety cover designed for an oval pool on a figure 8 design? Just wondering if this could be done without any issues. Seems that the only differences would be the narrower distance across the middle of the pool. Or am I missing something? Would seem that the...

OK received the new test kit today that I ordered just this past weekend and couldn't wait to see the results. but not sure what to think of the numbers that I found. Actually removed the winter mesh cover on this past Saturday. Water was super clear. Only a small amount of debris on the...