I wonder if anyone can advise. I wish to build a waterbutt system and place it in my cellar (which is level with the back garden, not below it).
I have a drain pipe on the back of the house (and one on the front).
The one on the back comes from the roof guttering, and the bathroom waste also converges in to this pipe.
What I want, is to have 2 butts in the cellar. One to collect pure rain water and the other to collect grey water (bathwater, shower, sink). Ideally, I want both butts to have a water pump each and both pump water in to one pipe - this pipe will lead to an outside tap - with 2 switches - one for grey and one for rain.
Does this sound feasible? and is the technology available?