Now take the bottom spreader or bottom plate and work it over the grids, lining up the cut-out in the bottom plate for the standpipe. This cutout will line up directly above the hole in the top manifold that connects to the standpipe. It may take some finesse to align the tabs of the bottom spreader plate to their proper location between each of the grids.
These tabs work as spacers to keep the grids all separated or spread out. Work with it until it looks symmetrical. A slight twisting motion will help seat the plate down close to the grids.
Tighten down the through bolts slowly and carefully to pull the top and bottom together tight onto the new filter grids.
Place the assembly back in the tank carefully as to not break any parts. Clean and lubricate the belly-band O-ring with a water-based lubricant to create a water tight seal.
Place the lid back on the tank and reinstall the band. Make sure that the clamp band is aligned properly, covering both halves of the filter tank. Tighten down the nut on the clamp band with a proper size wrench, until the spring of the clamp assembly is compressed tightly and all coils of the spring are touching the coils next to them. Add a full xharge, which is usually 1 pound of DE powder per 5 square feet of DE filter surface area.
If you have a square-foot filter, use seven 1-pound scoops. If you see any DE powder coming back through the system, the grid assembly may not be tight enough, or the air bleeder is missing on the top of the manifold. Note that many DE Filters will have each available size listed with corresponding model number. With the filter model number or part number you can easily locate it on our website and access the parts diagram. Simply plug the number in the search bar located in the header or our site, and click on your filter in the results.
From there simply click on the parts icon and you'll land on a page with all of the available parts for this filter, including the replacement DE Grids. Often there will be at least a couple options to choose from. If that is the case it is time to try the second method. Maintenance Equipment. Plugs Receptacles. Skimmers Drains. Spa Accessories. Spa Audio. Spa Plumbing. Thermostats Sensors. Topside Controls. Wet Ends. Wires Connectors.
Fire Pits. Game Room. Landscape Lighting. Water Exercise Equipment. View All Brands. Air Supply Of The Future. Aladdin Equipment Company. AquaStar Pool Products. ClearBlue Ionizer. Delta UV. Easy Care Products. FX Luminaire Lighting. Gecko Alliance. Glacier Pool Coolers. Hayward Pool Products Inc. Ledge Lounger LLC. Lion Premium Grills. Having over tubes creates a large amount of surface area 40 sq ft in a small package, called the Flex-Tube Nest, shown here.
This can result in longer filter cycles, or times between changing the DE powder. The Perflex filter is not backwashed, but is flushed and drained periodically.
Considered the standard grid design, the curved grid assembly may also be the most popular, or certainly the most used grid type.
Slightly curved grids are arranged in a concentric circle pattern, held in place by long thru-bolts that pull the bottom plate and the top manifold tightly together. The curved design conserves space within the tank, and uses only two sizes of grids, 7 full grids, and one partial grid which is half as wide, to fit behind the standpipe.
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