Attach Thermo Scientific™ Nalgene™ Pipet Washers/Rinsers to your sink water or DI tap and drain for repeated, automatic fill and empty cycling. Insert a filled pipet basket, then attach to water inlet and direct drain tubing into an appropriate drain to accept the rinse water. Turn on your water source and the wash chamber fills from the water inlet. When the wash chamber is full, a siphon forms at the drain elbow emptying the chamber through the drain outlet. Fill and empty cycles continue until water source is turned off.