Pentair D.E. Cartridge Style Filter Quad D.E. - Manual (Page 6)

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Quad D.E. ® Filter Installation and User’s Guide
IMPORTANT SAFETY PRECAUTIONS
(continued)
General Installation Information
The following information should be read carefully since it outlines the proper manner of care and operation for your
filter system. You can expect maximum efficiency and life from your filtration system by following these instructions and
taking the necessary preventative care.
• Have a trained pool professional perform all pressure tests.
• Do not connect the system to a high pressure or city water system.
• Trapped air in the system can create a hazardous condition. BE SURE to purge all air from the
system before operating or testing equipment.
• DO NOT pressure test with compressed air!
• Check local codes for restrictions on backwash to waste piping, separation tank requirements and
spent D.E. disposal requirements.
• DO NOT use more than the recommended amount of D.E. in your filter. To do so can cause a buildup
of D.E. and “bridging” between the elements which will plug the filter.
• Piping must conform to local/state plumbing and sanitary codes.
• Support piping independently to prevent strains on filter or valve.
• Fittings restrict flow; for best efficiency, use the fewest possible fittings.
• A check valve installed ahead of the filter inlet will prevent contaminants from draining back into the
pool.
• A check valve installed between the filter and heater will prevent hot water from backing up into the
filter and deforming the internal components.
• To allow recirculation during precoat, (if precoat pot is used), install a recirculation line with shut-off
between pad return line and pump suction.
• All wiring, grounding and bonding of associated equipment must meet local and/or National Electrical
Code standards.