Starting a new thread as looking through the forums hasn't uncovered as much recent discussion on specific commercial units as I'd like.
I'm leaning toward GreyFlow unit but would like to hear from Gator and other users too.
Pumps? Filters? Lines? Clogging?
What can you tell me?
Greywater diversion system for sub irrigation (new build suburban Adelaide)
(4 posts) (3 voices)-
Frewvk
MemberPosted Saturday 27 Aug 2016 @ 2:14:25 am from IP # -
If you have fall in ground level away from your building then consider a very simple branched drain design. Dumping the entire output in a single pit has worked for me previously.
http://oasisdesign.net/greywater/brancheddrain/
As the above site suggests, storing grey water is a recipe for trouble... gravity is an extremely reliable way to avoid storage.
Posted Monday 5 Sep 2016 @ 12:03:40 pm from IP # -
dlvb19
MemberDon't really know much about this but if its just sub surface irrigation then you could build your own. If there is a downwards slope to work with then brilliant, let gravity do the work. Otherwise you will need a buried buffer tank with a pump and float switch. Have it pump your grey water regularly, once a day at least, to the highpoint/points in your sub surface pipes, and let gravity do the rest. You may want a filter, depending on what sources or gray water are being aggregated, its probably worth the extra $100 or so as if your pipes get blocked downstream then god help you.
If you have a local plumbing/irrigation store, have a chat with them, they can be very helpful. Just don't take their word as cannon. And for god sakes, dont get the council involved
Posted Tuesday 6 Sep 2016 @ 2:59:43 am from IP # -
Frewvk
MemberThanks Andrew and dlvb19.
Our block doesnt have much fall and with the services emerging from 600 down only 8m from front boundary to reach "up" to subsurface and still run downhill from there it feels a bit of an ask for gravity to do it.... Reading through the link Andrew posted above was really helpful and encouraging as some of the detail in the builder's handbook or whatever its called actually match our plumbing detail so im glad our builder has been listening about the greywater collection. I'm also more confident that with basic (near obsessive) attention to heights and levels that i can make a system work even if it requires a pump.
The commercial systems (all > $1k and more like $2k or more with pump etc) are avail and health dept approved. But i hear you dlvb19 about council.
For planning approval and sign off, builder wants to do "straight" build with one blackwater and one greywater pipe leaving the slab and then joining together to go in to meet the sewer. Council inspects and signs off the dwelling as compliant and as a volume builder the insurance company is happy. Hes suggested its at that point "once we have done our regular bit" i can arrange my own private tradie or approach the site plumber to get the unit installed and bypass any liability to the building company. That way we get the house plans approved in a timely manner and signed off as well as having a health department approved system installed by a licensed plumber and their insurance covers us should things go south.... unless of course builder and plumber argue over whose fault... but really the commercial units are a plug and play system so "what could possibly go wrong"? Hahaha oh to live in the ideal world eh?
Without the opportunity to be on site to do it myself its about finding the middle ground.Posted Tuesday 6 Sep 2016 @ 9:43:03 pm from IP #
