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Greywater systems

Sometime in the near future, we plan to install a greywater system (as well as solar-electricity).  Whether it is part of the extension project will depend on how we're tracking with our budget.  If, as it progresses, it looks like our contingency fund is okay we'll probably commit to some extras.

To minimise installation costs for a greywater system, we plan to have the plumber put in as much of the necessary plumbing during the project as they can.  It shouldn't be complicated - probably just some extra fittings so that a greywater system can almost be 'plugged in'.

The first step is to determine what Greywater systems are approved for use in Victoria, and which ones are eligible for Victorian Government rebates. If you live elsewhere you should similarly check with your equivalent of the Environmental Protection Authority, Water and Sewage Authorities and Local Planning Authority.

The EPA provides guidelines and lists approved blackwater and greywater treatment type systems. However, via the EPA site, for the uninformed like us, the list is difficult to comprehend.  Clicking through to each one does give more information, and access to approval documents.

The Our Water site lists systems direct diversion non-treatment and treatment type systems eligible for rebates - the list is rather old (8th July 2009), which doesn't reassure me!  Some extra checks may be required. The treatment type systems 'list' is actually a helpful link to the EPA website, taking you straight to a short list of eligible systems. For us, the starting point is the list of approved direct diversion non-treatment systems.

A search of our Council's website found a general statement about greywater and links to the EPA and Department of Human Services websites. So presumably a permit isn't required.

Eco Care Greywater System
An example system like we would install is the Eco Care Greywater System, which is approved for the rebate of $500 from the Victorian Government and available from the Enviroshop for $930.

From the downloads on the Enviroshop website, it should plug straight into an outlet pipe.  For us that would probably mean either the downstairs bathroom or laundry, unless both can be combined.  I don't think it would be possible to combine the new upstairs bathroom with the outlets of the others - I'll have to look into this.


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