My wife and I bought an 8-year old house on a concrete slab (the usual construction these days). We want to be more environment-friendly by installing rainwater tanks. Apparently local councils now allow tanks to be plumbed to toilets and washing machines etc. However, is it a practical proposition to modify existing plumbing? Is it very expensive? Any advice appreciated.
» This message has been edited by DUNBAR on 08 February 2007