More Washing Machine Greywater Fun
...zontal feet of run equals the same amount of pressure as running 10 inches vertically. Ludwig suggests limiting the combined horizontal (using the 50 feet = 10 inches formula) and vertical run to the equivalent height of where the water would normally empty out into the standpipe near the top of the machine. 3. Install a three way valve at the standpipe to allow diverting the water to the sewer. 4. The pipe may need to be vented (either by running...