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Working together to help fix drain problems

Reduce wastewater being discharged into our rivers and onto people's properties during rain events.

When water isn't draining right, it's not healthy for your family, your home or our rivers and beaches.

The DrainWise project is about working together with property owners to help fix problems with wastewater and stormwater drains.

Project status

April 2018 - property inspections have been progressing well with 14 Kaiti wastewater catchments completed. There are 8 remaining. Gully trap water tests and sealings are being completed on an ongoing basis. 

Property inspections completed so far for 2017/18 year - 1,323 
Gully trap water tests completed since early May - 1,189 
Gully trap sealing completed since early May - 542

Total budget: $22 million over 10 years

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What we're doing

We continue to fix and replace our pipes. The wastewater discharges reduction plan

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On your property

What you can do to stop rain water getting into the sewer system

Drainwise inspectors

What is inflow and infiltration

Inflow and infiltration refers to rain water and ground water that enters the sewer (wastewater) system. 

Flooding questionnaire

We want to know about any stormwater and wastewater flooding on your property, especially when we have heavy rain. 

Property Inspection FAQs

Some questions and answers about our property inspections for DrainWise. 

Why discharges happen Q&A

What causes the wastewater to overload in heavy rain and what we're doing to help reduce the problem.

Glossary of terms

A glossary of terms for stormwater and wastewater.

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