PREPARATION
Ensure that –
appropriate approvals have been given by local authorities.
appropriately qualified persons, including electricians and plumbers, are employed to install and connect
the pumpwell.
We recommend that all holes cut in the pumpwell are made leak proof using rubber o-rings (provided), rubber
seals or bulk head fittings.
The pumpwell has three additional flat vertical areas that allow inlets to be cut into the pumpwell. These should
be sealed with an appropriate rubber seal or silicon.
SAFETY
Take care when working around excavated holes.
Deep holes can be considered confined
spaces. Consult with local/state laws and
make provisions as appropriate.
An empty pumpwell weights in excess of
70kgs. Take appropriate precautions when
manually handling the pumpwell.
Always use lifting holes to lower the pump
well into the excavated hole
SITE ASSESSMENT
Take note of the invert heights of the available inlets
into the pumpwell and ensure that the incoming
100mm drainpipe is appropriately supported and
allows for wastewater to flow directly into the
pumpwell.
Site MUST be away from areas susceptible to all
vehicular and foot traffic.
THE EXCAVATION
a) Prepare excavation greater than 1500mm
diameter up to 1900mm deep (Deeper holes may be
used when a riser is fitted). Sides and bottom should
be free from all intruding roots, stones, or other
matter.
b) Determine which of the inlet Connection Ports is to
be used. This will depend on the depth of the pipe
from the wastewater source at the point where it
meets the Pump Well.
c) Trench excavation should be widened for
vent connection (see below)
pumped water discharge
electrical connections
d) Line the bottom of the hole with 50mm of sand or
3mm pea gravel
PUMPWELL PREPARATION
a) Cut out the Inlet opening selected using an
appropriately sized hole saw.
b) Venting of the upstream pipe is usually adequate
for most installations. Where needed, a vent port to
suit the required pipe size may be cut in the side of
the pumpwell and may be secured using a bulk head
fitting.
c) Cut hole to accept selected pump discharge hose
or pipe fitting. This hole is normally in any vertical
face of the pumpwell. The size of the hole will be
dependent on the diameter of the discharge pipe
b) Cut the hole to accept the glands selected for the
electrical cable and flexible conduit. This should be
close to the side of the Pump Well to minimise the
exposed electrical conduit.
