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. Thanks for letting us know. The programmer will have a look at this later today. 2 6765 DIY, Home Maintenance & Repair But if it is a ground level open pit, then it is not a charged system. No surprises there. The pipes have obviously been altered and there would be a reason for this.… 3 31362 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 17593 |