Frequently asked questions – Basement waterproofing (FAQs)

Click the questions below to reveal the answer.

Are all DELTA and Koster products stock items and how long does it take for delivery?

Almost all of the DELTA and Koster range is available on a next working day delivery (Mon-Fri) if you order before 2:30pm (early deliveries available at an additional cost).

are all delta and koster products stock items and how long does it take for delivery?

As a pump station is an essential part of a cavity drainage system designed to prevent ground water from damaging a Basement, what emergency provisions are recommended?

The sump must be provided with duplicate pumps together with UPS (uninterruptible power supply), usually consisting of an automatically trickle charged battery system. A high water level alarm is also essential, and if the property is frequently left unattended for long periods, then it would be wise to include a Telemax SMS messaging system for remote warning.

Please note that remote warning should also be considered for rainwater and surface water applications.

as a pump station is an essential part of a cavity drainage system designed to prevent ground water from damaging a basement, what emergency provisions are recommended?

Can pump stations be used for rainwater applications?

Small sheltered catchment areas up to 12m² (such as Lightwells or Stairwells) can normally be served by the same pump station that serves the cavity drainage system. For larger or more exposed catchment areas separate pump stations are advisable, and it is also important to ensure that adequate provision has been included to prevent internal flooding of the building in the event of a 24hr disruption, e.g. power failure. We will be pleased to provide further guidance if required.

can pump stations be used for ra