The Water Supply (Water Fittings) Regulations 1999 (“The Water Regulations”) are designed to prevent the public water supply from contamination. Compliance with these Regulations is required for all businesses. But what are the risks with commercial laundry equipment and dishwashers, and how do you prevent non-compliance?


When a business uses water from the public mains supply, such as with a washing machine or dishwasher, there is a risk that contaminated water could flow back in the reverse direction and get into the public water supply. This is called ‘Backflow’. The Water Regulations are in place to set out the requirements to prevent this.

Achieving Compliance

To ensure your laundry equipment and dishwasher installations are compliant, you need:

  • equipment which meets the Water Regulations; and
  • the equipment needs to be installed and operating correctly.

To meet the Water Regulations, the appliance will be fitted with an ‘air gap’ and a ‘check valve assembly’, which then need to be installed correctly at the time of installation.

Choose JTM Service To Keep You Safe And Compliant

We supply commercial washing machines and dishwashers from leading manufacturers which are certified to meet the Water Regulations, for example with WRAS Approval, NSF Reg4 Certification or Kiwa UK Regulation 4 Approval.  And because we specialise in the supply and installation of commercial laundry equipment and dishwashers, we ensure they are installed correctly in compliance with the Water Regulations.

For further information on the requirements within the Water Regulations, and how appliances are fitted to prevent backflow, please see Complying With The Water Supply (Water Fittings) Regulations 1999.

Contact Us

To speak to us about your commercial laundry equipment and dishwasher needs, and how we can ensure you are compliant with the Water Regulations, please contact us on 0113 2572221 or