![]() ![]() Easy-clean elements allow for reduced cleaning time,. ![]() Valves and union kits are sold separately. Long lasting, easy-clean, elements can be backwashed or removed and quickly rinsed. Missing or damaged standpipe o-ring where the manifold fits on.Īn annual inspection and cleaning should keep your DE filter running in tip-top shape.DEP 500 Series pleated element filters combine the convenient maintenance of a cartridge with the superior water clarity of D.E.Loose assembly missing through wing nuts on thru-bolts.Missing or damaged air bleeder screen or sock on the manifold.Cracks in the manifold (don’t let it fall over!).Broken tabs on the top, where the grid inserts into the manifold.Tears or rips in the fabric, especially at the seams and the bottom center.To Inspect your DE filter grid assembly, look for: You can also buy the complete Flex Tube assembly, called the ‘Filter Nest’, or you may consider buying an entire new Perflex DE Filter. If during your cleaning and servicing, you notice several holes or the threads beginning to unravel or the grid material deteriorating, it may be time to replace the filter grids, which is the subject of this related post, DE Filter Grid Replacement.įor Perflex filters, you can buy the Flex Tubes individually or in 5-Packs in our parts department. To remove stains on DE filter grids or Perflex Flex Tubes, I recommend using our Granular Filter Cleaner chemical, which is a combination of scale and stain fighters, and can restore the near-new color to DE grids and fingers, while increasing filter flow rates. Scale will rapidly clog the pores of DE grids and Flex-Tubes, causing short-cycles to occur. ![]() Mineral Deposits: Primarily calcium scale from pools with high levels of calcium hardness, or from improper water balance. Hosing off the filter grids, or performing the Perflex cleaning procedure as described above is suitable in most cases, however a chemical cleaning may be necessary from time to time to remove mineral scale and oily deposits. If not winterizing, restart pump to fill filter with water, adding new DE powder. After draining completely, turn filter pump on for 5 seconds to flush tank.Ĥ. Open vent valve and remove filter drain plug to drain water from the tank.ģ. Shut off the pump, push bump handle down slowly and up quickly, 8 times.Ģ. Replace grids carefully back into tank, applying a small amount of lube to the standpipe o-ring, found on Pentair and Hayward filters. Do not take the grid assembly apart, but spray water fully in-between the grids, to completely clean grids on both sides.Ĩ. Place grids on a stable area, being careful not to let the assembly fall over, which can crack the top manifold.ħ. Two people may be needed, to lift the grid assembly out.Ħ. Lift up on sides of top manifold, with a slight twisting motion, to free the grids from the standpipe. Spray grids with a hose, to remove most of the heavy DE powder.ĥ. A flat tool may be needed to pry it off.Ĥ. With the proper wrench or socket, loosen the bolt and remove the clamp.ģ. Open air bleeder and remove filter drain plug to drain water from the tank.Ģ. Hosing clean will remove some (even if using the Mega Blaster DE Cleaning Tool), but for best results a chemical soaking is used to remove mineral scale and oily deposits. Minerals and Oils also build up within the filter fabric of a DE grid or Flex Tube, which backwashing does not remove effectively. And for pools that winterize and drain the filter tank, allowing the DE powder to dry onto the grids creates clogging problems the following year. Opening up the tank to hose off all of the powder every six months, is important to maintain filter performance. Adding a full dose of DE powder afterwards can lead to bridging between the grids, resulting in less effective filtration. Backwashing does not flush out all of the powder, sometimes only half of it is actually removed. ![]()
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