3
QUAD D.E.
®
Cartridge Style D.E. Filter Installation and User’s Guide
OPERATION
FILTER OPERATES UNDER HIGH PRESSURE.
When any part of the circulating system, (e.g., clamp, pump, filter, valve(s), etc.), is serviced, air can enter the system and become
pressurized. Pressurized air can cause the lid to separate which can result in severe injury, death, or property damage.
To avoid this potential hazard, follow these instructions:
1. Before repositioning valve(s) and before beginning the assembly, disassembly, or adjustment of the clamp or any other
service of the circulating system: (A) Turn the pump OFF and shut OFF any automatic controls to ensure the system is NOT
inadvertently started during the servicing; (B) open the manual air relief valve; (C) stand clear of the filter; (D) wait until all
pressure is relieved.
2. Whenever installing the filter clamp FOLLOW THE CLAMP INSTALLATION INSTRUCTIONS EXACTLY.
3. Once service on the circulating system is complete FOLLOW SYSTEM RESTART INSTRUCTIONS EXACTLY.
4. Maintain circulation system properly. Replace worn or damaged parts immediately, (e.g., clamp, pressure gauge, valve(s),
o-rings, etc).
5. Be sure that the filter is properly mounted and positioned according to instructions provided.
General Filter Operation
1. This filter operates under pressure. When clamped properly and operated without air in the water system, this
filter will operate in a safe manner.
2. The maximum working pressure of this filter is 50 psi. Never subject this filter to pressure in excess of this
amount - even when conducting hydrostatic pressure tests.
When performing hydrostatic pressure tests or when testing for external leaks of the completed filtration and
plumbing system, ensure that the Maximum Pressure that the filtration system will be subjected to DOES
NOT EXCEED THE MAXIMUM WORKING PRESSURE OF ANY OF THE COMPONENTS CONTAINED
WITHIN THE SYSTEM. In most cases, the maximum working pressure will be stated on each component of
the system.
If doubt exists as to the pressure to which the system will be subjected, install an ASME approved automatic
Pressure Relief or Pressure Regulator in the circulation system for the lowest working pressure of any of the
components in the system.
3. The pressure gauge is the primary indicator of how the filter is operating. Maintain your pressure gauge in
good working order (refer to
Maintaining the Pressure Gauge
on page 1)
4. Never operate filter in excess of three (3) minutes without use of diatomaceous earth. Diatomaceous earth is
the substance that filters the water, the filter cloth merely supports the diatomaceous earth. Operating without
diatomaceous earth will damage filter elements and shorten filtering cycles.
