Version 1.0 - Updated 08/01/2015
www.tanks-direct.co.uk 01643 703 358
Single Drainage Sump & Pump
Installaton Instructions and Technical Details
Installation Instructions
It is important to read these instructions which are for guidance only as it is the contractor’s
responsibility to satisfy himself that the installation procedure is in accordance with the prevailing
ground conditions and good building practice, to eliminate any potential damage to the pump station
either during of after installation.
AquaTank Pump Stations are manufactured from high density polyethylene and are extremely robust.
However as with any pre formed chamber they are susceptible to floatation and hydrostatic pressure
exerted in high water table conditions.
1. Select a suitable location for the AquaTank.
2. In all instances the pump station must be positioned on a flat, level surface; set on a concrete
base of dimensions sufficient to support the base of the chamber. The thickness of the base
should be adequate for the ground conditions and of a minimum of 150mm thickness.
3. Carefully position the AquaTank onto the base slab, ensuring that no loose debris is inadvertently
knocked onto the base slab under the pump station during this procedure.
4. The AquaTank must be backfilled with a mass concrete mix of a minimum 150mm thickness and
must be used in accordance with the ground conditions and be as dry as practicable to prevent
additional floatation pressure being exerted on the chamber.
The AquaTank must be ballasted with water at the same rate as backfilling such that the level
difference between the water and backfill does not exceed 300mm at anytime.
5. Where ground water is present in the excavation, dewatering must be undertaken throughout the
installation procedure and until the backfill has completely cured.
6. Similarly the ballast water inside the pump station should not be removed until the backfill has
fully cured.
7. It is extremely important that once the AquaTank has been installed and all connections made
the drainage system is flushed through and all sand, silt, rubble and general debris is removed
from the chamber.
FAILURE TO CARRY OUT THIS OPERATION WILL INVALIDATE THE WARRANTY ON THE
PUMP
8. The alarm panel housing (if applicable) must be sited adjacent to the AquaTank with 40mm cable
duct (with draw cord) for the cabling.
If the control panel is not to be sited adjacent to the AquaTank, DP&T should be advised at order
stage so that we can make recommendations as to the cabling requirements.
All electrical connections must be carried out by a qualified electrician.
