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WashR PRO | The pump is running but does not reach the working pressure

If your WashR PRO is running but not building proper pressure, here are the most common causes and how to fix them:

Possible Cause	What You Can Do
Pump is sucking air	Check all hose fittings are tight and sealed. Reconnect if needed.
Valves are worn or dirty	Clean the valves or replace them if they appear damaged or faulty.
Unloader valve packing is worn	Inspect and replace the unloader valve packing if worn out.
Nozzle is incorrect or worn	Use the correct nozzle size and replace it if it’s clogged or damaged.
Water supply pressure is too low	Make sure your tap is fully turned on and supplying enough flow.
Inlet filter is dirty	Check the water filter. Clean or replace it if it’s clogged with debris.

Still having trouble? If none of these fixes work, reach out to our support team — we’ll help get you back to full pressure fast.

Updated on 13 Jun 2025