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Quad D.E.
®
Filter Installation and User’s Guide
General Information, cont.’d.
7. Make all plumbing connections in accordance with local plumbing and building codes. Check local codes
for restrictions on backwash to waste piping, separation tank requirements and spent D.E. disposal
requirements.
8. Filter plumbing connections are provided with an o-ring seal. To avoid damage to the o-rings, use only a
silicone base lubricant on the o-rings. Do not use pipe joint compound, glue or solvent on the bulkhead
connections.
WARNING — THIS FILTER OPERATES UNDER HIGH PRESSURE.
Never subject this filter to pressure in excess of the maximum working pressure - even when conducting
hydrostatic pressure tests. Pressures above the maximum working p.s.i. pressure can cause the lid
to be blown off, which can result in severe injury, death or property damage.
9. 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. Pressures above 50 psi can cause the lid to be
blown off, which can result in severe injury, death or property damage.
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.