WASTE WATER PUMPING SYSTEMS
Wykamol SumpFlo
™
20/44
Installation and operating guidelines
Technical advice: 0845 400 6666
www.wykamol.com
First position the Primary pump on the base of the chamber ensuring that the float arm is not obstructed by for
example the chamber wall, inlets etc, at its optimum reach. Remove the nut located in the pump switch and
push the float arm into place ensuring that the nut is securely replaced. Prior to installing the internal pipe work
please check the Non-Return Valve is securely fixed to the pump outlet and ensure that the flap opens in the
direction of the flow.
a) Using a 1¾” Hole Saw (44mm), cut 2no. holes to dimensions of 495mm from base of chamber to
hole centre, tank connector hole centres of 60mm from centre of the discharge flat surface fascia,
noting on the above drawing for step arrangement.
b) Affix the supplied 1¼” PVC Tank Connectors (part list position no. 5), with the male thread being fully
externally located and placing the gasket seal internally between the internal locknut and chamber
wall. Tighten Tank Connector PVC screwed lock nuts.
c) For the primary pump to be located on the lower step - Apply PTFE tape to the supplied Male
Threaded Adaptor (part list position no. 1) and screw tightly into the Pump Integral Non-Return Valve
female threaded outlet connection point.
d) Position the Primary Pump within the chamber on the lower step, making sure the Male Threaded
Adaptor is in direct line with the installed Tank Connector. Check that the Pump Float Arm is free from
any obstruction at its optimum reach.
e) Place the Socket Union (position no.3) over the plain end of the Tank Connector relating to the
Primary Pump pipework (do not use solvent glue at this stage).
f) Measure and cut a length of horizontal Pipe required between the placed Socket Union (3) and Elbow
(2) to be positioned directly above the Male Threaded Adaptor (1), taking into your measurement the
length of pipe inserted into the fittings (do not use solvent glue at this stage).
g) Measure and cut a length of vertical Pipe required between the placed Elbow (2) and Male Threaded
Adaptor (1), taking into your measurement the length of pipe inserted into the fittings (do not use
solvent glue at this stage).
h) For the Battery Backup Bilge Pump to be located on the higher step - Apply PTFE tape to 3no. PL/
TH Barrel Nipples (9).
Screw 1no. PL/TH Barrel Nipple (9) directly into the bilge pump horizontal outlet connection – do not
overtighten.
Place 1no. Elbow (2) onto the PL/TH Barrel Nipple located into the bilge pump, transferring flow
direction from horizontal to vertical.
Screw 2no. PL/Th Barrel Nipples (9) directly into the 1¼” Brass Non-Return Valve (V) supplied from
the BBPS kit.
Place the Brass Non-Return Valve (V) complete with PL/TH Barrel Nipples, into the located Elbow (2),
noting the flow direction arrow displayed on the Brass Non-Return Valve to be aligned correctly.
i) Place the Socket Union (position no.3) over the plain end of the Tank Connector relating to the Bilge
pump pipework(do not use solvent glue at this stage).
