Smoking Out Sewerage Issues

Filed in Recent News by May 10, 2016

WHEN it rains in Scone the already stretched sewerage system is subject to a deluge of storm water and Council does not know where the excess water is entering the sewer.

Namits have been contracted to spend the next couple of months testing the sewerage system to the west of the New England Highway.

Matt Brown of Namits smoke testing the sewerage.

Matt Brown of Namits smoke testing the Scone sewerage lines.

Storm water typically enters the sewerage from people illegally connecting their storm water to the sewerage, unsealed sewerage manholes, maintenance shaft with broken caps or surcharge gullies which are low lying or have broken caps.

Matt Brown, manager of Namits will be using smoke to test the local sewerage system and identify where storm water may be entering.

“Many people don’t know where their maintenance shaft are in their yard, much less that the cover is broken,” said Mr Brown.

“They can be hard to find, under a pot, in a chicken yard, all kinds of places and it is always a good idea to know where it is so that if you do have a problem with your sewerage you know where to start,” he said.

A surcharge gully, which need to be checked to ensure they are properly capped.

A maintenance shaft, which needs to be checked to ensure it is properly capped.

“If the top of them is broken it is a fairly simple to fix, it’s really only five minutes work and most people can do it themselves,” he said.

“The sewerage system is built to take small flows, when you flush a toilet it is only 12 litres, but if a roof is connected when it rains the flow is flat out,” he said.

“It may only be a few houses which can cause a significant problem for the sewerage,” Matt Brown said.

An artificially created odourless smoke-mist, which does not pose any hazard, is pumped into the sewerage system and will be visible at points where storm water may be entering the sewerage.

Residents living in streets to be tested will be notified by letter box drop, to arrange for Namits to access outside sewerage and storm water points.

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