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We recommend that the discharge pipe work is 50mm solvent welded Class E PVC pressure pipe. To connect the
discharge pipe work to the discharge spigot on the tank you must firstly screw on the Plain/Threaded PVC Socket
(supplied already attached) onto the spigot which will then leave you with a plain socket to solvent weld your
discharge pipe work into.
To conform with current building regulations, low voltage wiring should not use the same conduit as high
voltage therefore we suggest cutting two 32mm holes to accommodate 32mm conduit into which the pump(s)
high voltage electrical connections should run in one and the High Level Alarms low voltage cable can run in
the other.
It is advisable to run the Pump(s) and High Water Level Alarm cable through the 32mm conduit at this stage. If
the Pump(s) and Alarm are not on site, run a pull cable through the two conduits ready for pulling through the
cables when they are ready to be fitted.
PLEASE NOTE: We suggest that the pump(s) are removed from the sump before backfilling with concrete.
7.
In all applications the tank must be backfilled with a mass concrete mix of a minimum 100mm thickness and
used in accordance with the ground conditions ensuring that it is as dry as practical to prevent additional
floatation pressures being exerted on the tank.
The tank MUST be ballasted with water at the same rate as backfilling such that the level difference between the
water and the backfill does not exceed 150mm at any time. Please ensure that when pouring the concrete
backfill, suitable steps are taken to prevent the concrete from entering the tank and drainage channel.
8.
Where groundwater is present in the excavation, local de-watering of the ground must be undertaken
throughout the installation procedure until the backfill has fully cured. Please note that the ballast water inside
the tank should not be removed until the backfill has fully cured.
9.
It is extremely important that once the tank has been installed and all the inlet connections made, before the
pump is installed and run, the system is flushed through and all sand, silt, rubble and general debris removed
from the tank.
FAILURE TO DO THIS WILL INVALIDATE THE WARRANTY ON THE PUMP (S).
10.
Once the tank is in position and the discharge pipe work is in place, you must connect the pump to the discharge
line. Simply screw the non return valve and 50mm waste pipe into the pump then connect the female end to the
inline shut off valve.
Electrical Connection
A qualified person in accordance with the Institute of Electrical Engineers Regulations should connect the unit
to the mains supply taking into account all the electrical information provided.
1.
The pump should be connected to a 230V 5A fused spur.
2.
To conform with current building regulations, low voltage wiring should not use the same conduit as high
voltage. This means the alarm float switch cable should NOT be in the same conduit as the 230V pump cable.
3.
Please ensure that there is suitable slack on the cable to allow for the pump to be removed for maintenance.
High Level Alarm
Please see separate installation notes.
