Washing Machine Hoses – Washing Machine Drain Hoses – Washing
Watts Backflow Prevention Products – cross connection control, backflow preventer, backflow prevention, backflow, back flow, double check valve and much more Sewer Backflow Valves. Are You at Risk? If you aren't sure whether your house is at So valves may be needed on washing machine drain lines, laundry sinks, fuel We live in a townhouse, about 35 years old, with a washing machine, about five years old I wonder why we get no backflow and drain overflow on the delicate cycle.