4
Fire and burn hazard.
Modern motors run at
high temperatures. To reduce the risk of fire, do not allow
leaves, debris, or foreign matter to collect around the
pump motor. To avoid burns when handling the motor, let
it cool for 20 minutes before trying to work on it.
NOTICE:
Use Teflon tape or Plasto-Joint Stik
1
for making
all threaded connections to the pump. Do not use pipe
dope; pipe dope will cause stress cracking in the pump.
NOTICE:
Pump suction and discharge connections have
molded in thread stops. DO NOT try to screw pipe in be-
yond these stops.
Teflon Taping Instructions:
Use only new or clean PVC pipe fittings.
Wrap male pipe threads with one to two layers of Teflon
tape. Cover entire threaded portion of pipe.
Do not
overtighten or tighten past thread stop in pump port!
If leaks occur, remove pipe, clean off old tape, rewrap
with one to two additional layers of tape and remake the
connection.
NOTICE:
Support all piping connected with pump!
Piping:
Use at least 2" IPS PVC (51mm) pipe. Increase size if a
long run is needed.
To avoid strains on the pump, support both suction and
discharge pipes independently. Place these supports near
the pump.
To avoid a strain left by a gap at the last connection, start
all piping at the pump and run pipe
away
from the pump.
Never use a suction pipe smaller than pump suction
connection.
1
Lake Chemical Co., Chicago, Illinois
To avoid airlocking, slope suction pipe slightly upward
toward the pump.
NOTICE:
To prevent flooding when removing pump for
service, all flooded suction systems
must
have gate valves
in suction and discharge pipes.
Fittings:
Fittings restrict flow; for best efficiency use fewest possi-
ble fittings.
Avoid fittings which could cause an air trap.
Pool fittings must conform to International Association of
Plumbing and Mechanical Officials (IAPMO) standards.
Use only non-entrapping suction fitting or double
suction.
POOL PUMP SUCTION
REQUIREMENTS
Pump suction is hazardous and can trap
and drown or disembowel bathers. Do not use or operate
swimming pools, spas, or hot tubs if a suction outlet
cover is missing, broken, or loose.
Follow the guidelines
below for a pump installation which minimizes risk to
users of pools, spas, and hot tubs.
Entrapment Protection
The pump suction system
must provide protection against
the hazard of
suction entrapment or hair entrapment/entanglement.
Suction Outlet Covers
All suction outlet covers must be maintained. They must
be replaced if cracked, broken, or missing.
See below for outlet cover certification requirements.
All suction outlets must have correctly installed, screw-
fastened covers in place.
At Least
3 Feet
Suction Outlet
(Main Drain)
Suction Outlet
(Main Drain)
IAPMO Certified
Anti-entrapment
Cover or Suction Fitting,
screw-fastened to
Main Drain Sump
IAPMO Certified
Anti-entrapment
Cover or Suction Fitting,
screw-fastened to
Main Drain Sump
Pump
Valves OK between
pump and Tee
No valves between
Tee and Main Drains
2762 0197
Figure 2 – Recommended pump suction layout.
