landscape

 Ideally flow splitters (double ells) have a straight 2' long run leading into them for the flow to split evenly.  Note valve boxes or mulch shields holding space around the double ells and allowing for future access.

Digging trenches for branched drain greywater pipes.  Required slope for optimal flow is 1/4 inch per foot. 

The greywater is discharged at the drip line of the tree.

The greywater line from a laundry to landscape system is attached to the top of this raised bed. Greywater exits through 1x1/2" Tees in the line, dropping into the bed. To follow health guidelines the greywater should not touch the edible portion of food plants. So, larger, elevated vegetables are grown here, like squash and beans.

Using 1" ball valves to create multiple zones for distribution of greywater.  One valve is tied open at a time for safety, to prevent accidental closure of both valves at the same time which could create backpressure and damage the pump. (note: the connection between the PVC and tubing is not glued so it could pop open as a safety measure).

Flow from the shower is divided up using flow splitters. The pipe is sloped 1/4 inch per foot (2%) and buried. An access covering (valve box or "mulch shield") placed over the flow splitter allows for future monitoring.

Pipes are buried and graded at a downward slope of 2% or 1/4" per foot. The shower produces approximately 15 gallons a day, and is divided to irrigate two fruit trees and two vines.

Greywater from the kitchen sink is divided up to irrigate 4 citrus trees. The pipes are sloped at a 2% grade and discharge greywater into mulch basins.

Greywater is divided into 3 parts, half the water discharges into a large mulch basin located between two established fruit trees, a cherry, and an apple. The other half its divided to irrigate two fig trees. This image is during the construction of the system. Once complete the pipes will be completely buried, and the flow splitters will be covered and accessible for future maintenance.