HydraMaster RX20 Micro Switch Base UOM:EACH My pump hammers

My pump hammers

The by-pass valve regulates solution pressure and dumps the excess back to the water box

Flush thoroughly

The three do different jobs: the sender drives the gauge

HydraMaster RX20 Micro Switch Base UOM:EACH My pump hammersOverview Micro switch for the HydraMaster RX 20 rotary extractor. HydraMaster part number 000 157 032, listed as Switch, Micro. The micro switch sits in the trigger assembly and controls solution flow. A worn switch shows up as solution that will not shut off cleanly, or a trigger that has to be held at an angle to work. Specifications HydraMaster part number: 000 157 032 Fitted in the handle trigger assembly, alongside the chrome momentary switch 000