Pentair SM/SMBW 2000 - Manual (Page 9)

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SM/SMBW 2000 Series™ Filter Installation and User’s Guide
Section 2
Filter Operation
This section describes how the SM/SMBW 2000 Series™ filter operates.
General Information
WARNING — THIS FILTER OPERATES UNDER HIGH PRESSURE.
Pressurized air can cause the lid to be blown off which can result in severe injury, death, or property
damage. When clamped properly and operated without air in the water system, this filter will operate
in a safe manner.
1. Warning labels should be affixed to the top of the filter and on the clamp bands at all times. Keep safety
labels in good condition. Replace missing or damaged safety labels. {For free labels call (805) 553-5000 or
(919) 566-8000.}
2. The "SM/SMBW" Series Filter has been listed and approved by the National Sanitation Foundation. This
booklet will enable you to install and operate your pool filter in the correct manner. Correct installation and
operation will result in the trouble free operation of a quality product, as well as prevent unnecessary
repairs.
3. Model SMBW Filter System
a. Standard SM Series Filter with built-in backwash valve. Simplifies plumbing installations.
4. Model SM Filter System
a. Standard SM Series requires separate valves for backwash.
CAUTION — Before starting any filter system, be sure the pump has been adequately primed by filling the strainer
on the pump with water. Failure to do so will result in pump seal problems. When installing in
conjunction with a heater, a one-way check valve should be used between the filter and
heater to prevent the backflow of hot water from damaging the filter internals.
U.S. Patent No.
4,414,109
4,328,833