HomeRPZ Testing

RPZ Valve Testing in Preston

Professional RPZ valve testing and backflow prevention for commercial properties in Preston and the surrounding North West England area.

RPZ testing services in Preston

Preston's manufacturing and commercial property base creates regular demand for RPZ testing and water regulations compliance.

Industrial units around the city often need backflow protection.

We test reduced pressure zone valves to confirm both check valves and the relief valve are operating within the required parameters, and we provide compliant documentation for your records. Testing is generally carried out annually, though the exact obligation depends on the installation, your water supplier and the relevant requirements that apply.

Typical Preston commercial properties we test

Catering and commercial kitchens
Dental and medical surgeries
Laboratories and research facilities
Manufacturing and process plants
Hotels and hospitality venues
Buildings with shared or boosted supplies

The testing process

  1. 1

    We isolate the valve and connect calibrated test equipment.

  2. 2

    Both check valves are tested for tightness and correct pressure.

  3. 3

    The relief valve is tested for correct opening pressure.

  4. 4

    We record results and provide compliant documentation.

  5. 5

    If anything fails, we quote for the service or repair and re-test.

Why use Captain Backflow in Preston?

Specialist focus on RPZ and water compliance

Compliant documentation for every valve

Coverage across North West England

Advice on the correct protection for your risk

Local FAQs

RPZ testing in Preston — your questions