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In most cases, a person intending to install plumbing systems or water fittings must provide details of what is proposed to South West Water and obtain the company's consent for the proposals before work starts.

This applies to water system installations or alterations in connection with any of the items in the following table.

1 The erection of a building or other structure, not being a pond or swimming pool.
2 The extension or alteration of a water system on any premises other than a house. #
3 A material change of use of any premises
4 The installation of-
(a) a bath having a capacity, as measured to the centre line of overflow, of more than 230 litres; *

(b) a bidet with an ascending spray or flexible hose; #

(c) a single shower unit (which may consist of one or more shower heads within a single unit), not being a drench shower installed for reasons of safety or health, connected directly or indirectly to a supply pipe which is of a type specified by the Regulator; *

(d) a pump or booster drawing more than 12 litres per minute, connected directly or indirectly to a supply pipe;

(e) a unit which incorporates reverse osmosis;

(f) a water treatment unit which produces a waste water discharge or which requires the use of water for regeneration or cleaning;

(g) a reduced pressure zone valve assembly or other mechanical device for protection against a fluid which is in fluid category 4 or 5; #

(h) a garden watering system unless designed to be operated by hand; or *

(i) any water system laid outside a building and either less than 750mm or more than 1350mm below ground level.

5 The construction of a pond or swimming pool with a capacity greater than 10,000 litres which is designed to be replenished by automatic means and is to be filled with water supplied by South West Water. *

For installations connected to mains water the following information must be sent to the Regional Water Regulations Group at South West Water Limited at the address shown

  • The name and address of the person giving notice and, if different, of the person to whom consent should be sent.
  • A description of the proposed work or material change of use.
  • The location of the premises and their use or intended use.
  • Except for items marked* in the table above, a plan of that part of the premises which relates to the proposed work and a diagram showing the pipework and fittings to be installed.
  • Where the work is to be carried out by an Approved Contractor, the name and address of the contractor.

Installation of items marked # in the table above by an Approved Contractor does not require advanced notification.

A notification form has been produced and is available from South West Water for those who wish to use it.

Consent will not be withheld unreasonably and may be granted subject to conditions which must be followed.




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