Pumping Systems




Sump pumps are a necessary evil, no one wants a pump but it’s the most important component in the design of any basement solution.

Pumps come in a wide and varied variety from all the manufacturers, from a single pump in a chamber to a full Telematics system which will phone you if there is a fault with your pumping station.

It is recommended that systems should be installed with a twin pump arrangement.  This design adds in some resiliency in the event that one of the pumps should fail, the second pump can take over, in addition to this should the water volume increase and the first pump cannot cope with the volume, the second pump will kick in to assist with this.

To manage the water that is drained from the DELTA® cavity membrane systems we provide Basement Drainage solutions for your basement.

Basement Waterproofing Sump Pumps | AllianceAlliance use a Groundwater Drainage solution by DELTA which is a packaged pump station designed to collect groundwater through the clear opening in the top of the chamber or introduced through the side either via a DELTA perimeter channel system or Modular system (DELTA floor drain design 129), via the three 110mm side push-fit inlets, for example, the collection of water from light wells. Alliance use DELTA Foul packaged pump stations which can also collect grey water from sinks, showers, washing machines, and dishwashers.

The side inlets also provide a useful means of collecting water from restricted areas by means of 110mm drainage pipe set in the floor design, level with the slab.

The package comprises of two V3 pumps set at different levels to act as duty assist or duty standby. All internal pipe work is pre assembled within the chamber including non-return valves and a gate valve for isolation purposes.

The package is delivered only requiring connection of two unions to complete all internal pipe work. A high level alarm is recommended.  The pump station would be selected in applications where running water is present or expected. Alliance can provide Bespoke designs which are available on request.



Another safeguard is to install a battery backup pump or a UPS connected to one of the pumps in the chamber (Uninterruptible Power Supply). This will automatically fire the pump when required if the power fails and will last until the battery runs out of charge (all these systems have an intelligent charging mechanism to keep the battery at peak performance)

It should be remembered that that the charging unit or battery should be keep well out of the way of the water on a suitable shelf or ledge.