6
INSTALLATION
WARNING: Basin or tank must be vented in accordance
with local plumbing codes. These pumps are not designed
for and CANNOT be installed in locations classified as
hazardous in accordance with the National Electric Code
ANSI/NFPA 70.
CAUTION: Never enter pump chamber after sewage or
effluent has been in basin. Sewage water can give off
methane, hydrogen sulfide and other gasses which are
highly poisonous. For this reason, Myers recommends
installing effluent pumps with a quick removal system. The
quick removal system may be a union or Cam-lok® coupling
if the pipe or discharge hose is within reach from the
surface, or a rail system type quick disconnect on deeper
installations. See installation drawings for suggested
installation.
The dosing tank or pumping chamber must be constructed
of corrosion resistant materials and must be capable of
withstanding all anticipated internal and external loads. It
also must not allow infiltration or exfiltration. The tank must
have provisions for anti-buoyancy. Access holes or covers
must be adequate size and be accessible from the surface
to allow for installation and maintenance of the system.
Access covers must be lockable or heavy enough to prevent
easy access by unauthorized personnel. The pumping
chamber holding capacity should be selected to allow for
emergency conditions.
The discharge pipe must be the same size as the pump
discharge 1-1/2” for SSM33 and SSM33I, 2” for SRM4 or
larger. In order to insure sufficient fluid velocity to prevent
any residual solids from collecting in the discharge pipe, it is
recommended that a minimum flow of 2’ per second be
maintained. (12 GPM through 1-1/2” pipe, 21 GPM through
2” pipe and 46 GPM through 3” pipe). It is recommended
that PVC or equal pipe is used for corrosion resistance. A
full flow (ball or gate) shut off valve must be installed to
prevent back flow of effluent if the pump must be removed
for service. A check valve must be installed on pressure
sewer systems and on other systems where conditions allow
to prevent backflow and to reduce wear on the pump
system.
A high water alarm must be installed on a separate circuit
from the pump circuit. The alarm should have the ability to
be tested for proper operation.
POINTS TO CHECK IF PUMP DOES NOT
RUN OR DOES NOT RUN PROPERLY
(1) Pump does not run or start when water is up in tank.
(a) Check for blown fuse or tripped circuit breaker.
(b) Check for defective level switch
(c) Where control panel is used be sure H-O-A switch is
in the AUTO position. If it does not run, turn switch to
the HAND position and if the pump runs then the
trouble is in the automatic electrical system. Have
ELECTRICIAN make electrical checks.
(d) Check for burned out motor. Occasionally lightning
can damage a motor even with lightning protection.
(e) Where plug-in cords are used be sure contact blades
are clean and making good contact. DO NOT USE
PLUG-IN CORDS INSIDE A SUMP OR WET WELL.
(f) Level control ball or weight may be stuck on side of
basin. Be sure it floats freely.
(2) Pump runs but does not deliver flow.
(a) Check for airlock. Start and stop pump several
times, if this does not help it may be necessary to
loosen a union in the discharge line to relieve airlock.
(b) Check valve may be installed backwards. Check flow
arrow on valve body. Check shut-off valve. It may be
closed.
(c) Check vertical elevation. It may be higher than pump
can develop. (See pump curve).
(d) Pump inlet may be plugged. Remove pump to
check.
CAUTION: ALWAYS UNPLUG POWER CORDS OR TURN
OFF ALL MAIN AND BRANCH CIRCUIT BREAKERS
BEFORE DOING ANY WORK ON THE PUMP. If control
panel is remote from pump, disconnect lead wires to motor
so that no one can turn the circuit breaker back on.
BEFORE DISMANTLING PUMP FOR
REPLACEMENT OF PARTS
Clean pump thoroughly. Knock off all scale and deposits.
Submerge complete unit on Clorox solution for one hour
before taking apart.
13800A991