Delta Dual V4 Sump - 2 x V4 Pumps

In stock
£1,266.00 Ex VAT
£1,519.20 Inc VAT

The Delta Dual V4 pump & sump unit is designed to collect groundwater from a cavity drainage membrane system

Delta Dual V4 Sump Pump Deep Basements

The Delta Dual V4 pump & sump unit is designed to collect groundwater from a cavity drainage membrane system. The Dual V4 offers a higher discharge head to the V3 range and is suitable for double and triple depth basements. 

The Delta Dual V4 is suitable for basements that require a head height greater than the V3. The Delta Dual V4 can pump 12m² of surface area in addition to ground water.

Groundwater enters via the membrane system and drainage channels and collects through the top opening of the sump or via three 110mm pipe inlets. The water is then pumped via two powerful V4 float-activated submersible pumps to mains drainage or another suitable outlet.

Delta Dual V4 Sump Pump Installation 

The Delta Dual V4 Sump Unit has been designed with ease of installation in mind. 

There are no specialist tools or skills required to install and all relevant adaptors are supplied.

The sump unit is delivered to site with all internal pipe work pre-installed. Only a simple screw on fitting is necessary to connect the pump. The unit is lowered into the excavation and all pipework and cable duct connections are made.

The pump station is filled with water to prevent flotation then back filled with 100mm concrete around the sump to form part of the floor slab. An access cover is set over the sump for maintenance purposes. 



  • Higher discharge head
  • Easy to install – no specialist tools required
  • All internal pipe work pre-installed
More Information
Model DMS 217-1
Manufacturer Delta Membranes
Packaging Individual
Size See technical data sheet for exact dimensions
Colour Yellow sump chamber
Country of Manufacture United Kingdom

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