Backflow from fittings
or appliances resulting in unwholesome water passing into
drinking water supplies can constitute a serious public health
hazard. There are numerous, well documented cases where backflow
has resulted in contamination incidents which were harmful to
health. The risk is a continuous one because plumbing systems
are frequently being installed, altered, or extended.
Prevention of backflow
requires a thorough knowledge and continual vigilance. Education
is essential and even those who are experienced in plumbing
systems may fail to recognise potential backflow and
cross-connection situations. Those responsible for the water
supply in their premises must be familiar with the potential
risks from backflow and cross-connections and must carefully
monitor their systems.
The Regulations state that RPZ valves must comply with the
requirements for water fittings (Regulation 4) and must be
installed 'in a workmanlike manner'. One way of complying with
the ‘workmanlike manner’ requirement is to conform to a method
of installation approved by the Water Supplier.
Valves are one of the only qualified and accredited testers of
RPZ valves in the South Lincolnshire area, our service of
testing and installing RPZ valves covers the whole of the
Commissioning and testing of an RPZ Valve
must only be carried out by an accredited tester approved by the
Water Supplier as being competent to test.
It is a criminal offence to contaminate the
water supply or to use fittings which cause or are likely to
cause contamination. This applies equally to backflow causing
contamination of water in the Water Supplier’s mains or in the
customer’s premises before use.
The installation and use of an RPZ Valve
requires a long-term commitment to testing and maintenance on a
regular basis . Test methods and maintenance regimes shall be in
accordance with the Water Supplier’s requirements. Failure to
comply with these requirements increases the risk of
contamination by backflow and may result in the Water Supplier
temporarily suspending the supply.
Bluewater Valves are here to help,
advise, install, commission, test and maintain your Reduced
Pressure Zone (rpz) valve.