Browse Forums Owner Builder Forum 1 Feb 15, 2017 2:36 pm Next question is whether one is allowed to do your own septic tank installation and drain field, with a registered plumber signing off on it, or does the plumber have to do it? If so, how much can one do yourself, ie dig the holes and trenches? I estimated 56 mtres of drain field pipe (100mm pipe) on a 3,000 litre septic tank with a baffle - does that sound in the ball park for sandy soil? Re: Septic tank question 3Feb 24, 2017 8:17 pm sorry not very helpful that last post, but I am having the same ideas about my build, but in the end I am going to need a plumber and other trades to sign off on what I do, so I need to find some co operative trades first. If you can calculate the reasonable charged head from let's say 100mm below the gutter to the top of where the vertical riser's horizontal discharge pipe will be, that… 11 17850 Grate, thank you! RexChan if thats the reason i could sleep well without thinking about additional cost. But 1st i'll need to read about NRV cleaning/replaing stuff. I… 7 31468 Building Standards; Getting It Right! Thank you for the generous offer. I need to get the plumber out to give me an explanation. As mentioned I haven't seen any rain water discharge from pipes 1& 3. It… 7 11182 |