John C Daley wrote:I dont think you will have a problem, you are not using solids, and 2 inch pipe is the size grey water normally uses.
In you case the 4 inch is used for solids and the grey is just added.
I dont think an elevated dispersion field would be disprutive if planned properly.
Douglas Alpenstock wrote:Septic systems are a giant barrel of laughs. I have issues too, and regularly fish in black waters.
I think a 2" drain can handle sink or shower. The tub is best turned into a planter or fish pond. Put low flow heads on everything -- the less water you put in, the less headaches you have to deal with downstream.
EDIT: If you mess with this system, make sure your black water system won't airlock. There's usually a roof vent or two and this ensures there is sufficient whoosh and flow to handle solids without plugging up.