Sewerage & drainage

A small problem underground can lead to big problems for your business. We can help you maintain or improve your sewer and drainage networks.

Junction of clay sewage pipe surrounded by gravel

Return to sewer allowance

Your sewerage volume charges are normally based on the assumption that not all water consumed is returned to the sewer. Most sewerage wholesalers apply a default Return to Sewer (RTS) figure of 90 to 95% to their metered sewerage volume charges. Where a customer believes that the volume of water returned to sewer is less than the default allowance, they can apply for a reduction in the RTS percentage.

The Retail Wholesale Group have created a useful PDF guide on this. It outlines the responsibilities of the supplier and wholesaler, what you can expect as a minimum standard of service and how you can apply.

Read the guide

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