Tuesday, April 11, 2017

Pentair QUAD D.E.® Cartridge Style Filter Overview

The Pentair Quad D.E. Filter is a unique filter type that combines the ease of use of a cartridge filter with the filter efficiency of a D.E. Filter. I have several of these filters on my pool route and if you go with a D.E. Filter for your pool the Quad D.E. Is definitely worth a look.



The first thing you will notice about the Quad D.E. Is that it doesn't take up much space at your equipment pad. The 60 sq ft version in this video is about the size of a standard 48 sq ft filter. The 80 sq ft and 100 sq ft versions are about the size of a standard 60 sq ft D.E. Filter. This benefits you if your equipment area is tight and installing a large filter is not possible.

The interior of the Quad D.E. Is what sets it apart from your standard D.E. Filter. Instead of a Top Manifold and eight grids you have four cartridges with an easy to remove top manifold that just snaps off of the cartridges. The reason the Quad D.E. Does not have the same filter area as a cartridge filter is that the pleats are large and spaced wider to accommodate the D.E. That will coat them.

So the Quad D.E. Is set up like a cartridge filter but uses D.E. To filter down to 5 microns, much better than a standard cartridge filter. It is like having the convenience of a cartridge filter with the filtration of a D.E. Filter.

Here is a brief description from Pentair:
    Four large-capacity cartridges provide maximum filter surface area for greater dirt-trapping capacity and longer periods between cleanings
    Unique internal flow path ensures optimum filtration and backwashing efficiency
    Chemical resistant, fiberglass-reinforced polypropylene tank for exceptional strength and long lifer
    Easily removable cartridge elements make maintenance fast and easy
    Water flows through the Quad D.E. Cartridge Style Filters so efficiently that your pump will use less energy

Note: Operating Limits – maximum continual operating pressure of 50 psi. Pool/spa (bather) applications, maximum operating water temperature (internal filter) 104°F (40°C).



If you have the standard push/pull piston backwash you will have to remove it or disable it to protect the filter from damage. Since the Inlet and Outlet are reversed on this filter, if you pull up the backwash valve it will cause the opposite effect desired. D.E. May even enter back into the pool. For this reason only a specific multi-port backwash valve can be used with the Quad D.E. Filter, the Pentair 263080 FullFloXF High Performance Backwash Valve with Inlet on Top:


When I talked to Pentair they suggest installing the Quad D.E. Without any backwash valve. Although the cartridge material is thick much like a standard grid, backwashing will wear them out faster and the replacement cartridges are not inexpensive. I also recommend not backwashing a Quad D.E. Filter. It is very simple to remove the top and just clean them whenever the filter pressure gets high.

When you are shopping for a new filter for your pool the Quad D.E. Should be on the top of your list. The ease of cleaning and the excellent filtration of this filter makes it an excellent choice. To see more videos on the Quad D.E. Including installation see the list below.

Quad DE Filter Cleaning: http://youtu.be/2aoP-eTpiMs
How to Install a Pentair QUAD D.E. Filter: https://youtu.be/3WardgaUOAQ
How to Add D.E. to a QUAD D.E.® Cartridge Style Filter: https://youtu.be/C0hC88udxBY
Pentair QUAD D.E.® Cartridge Style Filter Assembly: https://youtu.be/L4sp5M8Udck








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