Looking for Washer drain solution
Consider splicing a gate valve into the washer's drain pipe and pinching off the flow to about half what it would otherwise be.
In a typical 5 minute spin cycle, 99.9% of the water is pumped out in the first 30 seconds of spinning. The remaining 4 1/2 minutes of spinning is to reduce the moisture content in the clothes so the dryer has less work to do. If you reduce that rate to 50%, almost all the water will be pumped out in 1 minute, and the only difference will be that the clothes will be slightly wetter when the spin cycle stops. They will be wetter by the amount of water that would normally be spun out of the clothes in the last 30 seconds of the spin cycle, which isn't much.
Another idea is to get a front loading washer, which typically uses much less water than a top loader. If you pinch off the flow from a front loader with a gate valve, you shouldn't have a problem. Washing machine pumps typically have a rubber impeller inside them that can be damaged by pins, buttons and coins going through the pump and still work effectively. Pinching off the flow out of the pump for the first half minute of the spin cycle won't do any harm to the pump. And, after that first 30 seconds, it won't matter that the gate valve is there because the flow rate is limited by the amount of water coming out of the clothes which is steadily diminishing.
Your bathroom sink will typically require a 1 1/4 inch drain pipe, the bathtub and kitchen sink require a 1 1/2 inch drain pipe, and the toilet needs a 3 inch drain pipe.
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Last edited by Nestor_Kelebay; 01-24-2009 at 01:40 AM.