Like all water undertakers, we have a statutory duty to ensure that drinking water supplied through both public or private networks within our NAV sites is of a wholesome quality, is free from contamination or cross connections to non-potable water and is used efficiently. Only competent plumbers are allowed to work on the drinking water network and a system of works notification and approval is required to satisfy our regulatory risk assessment. The following documents provide background information on the importance of, and the approach to, achieving a compliant, efficient and safe drinking water supply.

As well as full back-flow protection for industrial NAVs, it is Albion Eco’s policy to require the installation of non return valves on all branches of domestic cold water systems intended to feed appliances such as dishwashers and washing machines.  All materials must be BS6920 compliant and we recommend using an approved contractor eg WIAPS or WaterSafe registered. Links to relevant information can be found below:

Information and guidance on selecting water fittings: Water Regs UK Limited – Publications

Pipe laying in contaminated land guidance: Guidance for the Selection of Water Supply Pipes to be used in Brownfield Sites (

Watersafe approved plumbers WaterSafe | Local Approved Plumbers

WIAPS approved installers Water Regs UK Limited – Search for WIAPS Installer

Water Softeners

For advice on installing water softeners please visit our Water Hardness page.

Developer Guidance

Contaminated land assessment guidance – see download link below.

The Water Supply (Water Fittings) Regulations 1999: 

Information on the Regulations and how they affect you: Water Regs UK Limited – General Overview

Information on Notification of Proposed Plumbing Work: Notification under water fittings regs (

Installation guidance: Water Regs UK Limited – Specific Installation Guidance

Albion Eco are not responsible for the above third party links, we believe they are correct as at the time of publication (October 2023)

Useful Downloads