Browse Forums Building A New House Re: Correct water pipe size? 2Jul 05, 2013 4:06 am There are a range of sizes depending on things like materials, however the standard domestic water supply is based on a 20mm diameter meter. The Harder You Try - the Luckier You Get ! Web site http://www.anewhouse.com.au Informative, Amusing, and Opinionated Blog - Over 600 posts on all aspects of building a new house. DIY, Home Maintenance & Repair We have a hot water copper pipe that runs from our hot water unit on one side of our house under a concrete slab to our bathroom and laundry...old house so not ideal. The… 0 5107 OK it's been a little while! I've been busy getting time where I can to work on this. I started by grading a pad (borrowing a… 26 19966 yep sounds good make the footing bigger to to allow for the pipe in the middle 3 7298 |