- 1). Install a diverter valve in your washing machine's drain line. The easiest way is to cut the line at a convenient place, fit the diverter into the line and clamp it down. This allows you to send water outside or into the septic tank or sewer system.
- 2). Make a circular basin around each plant or area to be watered with greywater. Use bricks, pavers or anything else you like to create basins that will contain the greywater when it discharges. Using recycled materials will help to keep your costs low. The edges should be at least 6 inches high.
- 3). Fill the basins with mulch. This will help absorb the water, to avoid large puddles and keep the soil damp for long periods.
- 4). Create the greywater line from the washer to the plant basins. Attach the connector to the unused opening on the diverter. Drill a hole in the wall with the keyhole saw near the washer drain, and feed one 2-foot section of PVC to the other side of the connector. This piece should come straight out of the wall. Caulk around the hole to prevent pests from getting in.
- 5). Place the "T" piece on the outside portion of the PVC. Attach one 10-foot section of PVC to each side of the "T." Direct the other end of the PVC into two separate mulch-filled basins and cement all the pieces of PVC together to complete the greywater discharge system. Note that you may need to adjust the pipe lengths used to fit your yard and home.
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