Could you gain from rain?

You could reduce your bill if your surface water doesn't drain to the public sewer

First things first – what is 'surface water'? Well, we describe it as water that falls as rain, is collected by drains and gullies on your property, before being removed by us via a public sewer.

And you could knock money off your bill if:

either:

  • all the rainwater or groundwater from your home including your roof (or shared roof), garden, drive, patio and yard, drains directly to the ground or via a soakaway (a means of draining away water through the ground) at both the front and/or rear of your property

or

  • all the rainwater or groundwater from your home, garden and hard standing areas (e.g. drive, patio or yard) drains directly into a watercourse, brook or stream and does not enter the public sewer

or

  • you pay a third party (e.g. British Waterways) to dispose of your surface water

We've included a diagram to illustrate a property that may be entitled to a bill reduction if surface water does not drain into a public sewer (PDF 87 KB opens in a new window).

You are not entitled to a reduction if:

  • any proportion of your surface water drains to the public sewer
  • only part of your surface water goes to a soakaway, with some surface water still draining to the public sewer
  • you have re-directed your roof drainage into water butts
  • you drain to a watercourse, brook or stream via the public sewer

We've included a diagram to illustrate a property that is not entitled to a bill reduction because of the way surface water is disposed of (PDF 87 KB opens in a new window).

How to apply for a reduction in your water bill