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Wall Box Water Meter

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					Water metering policy
for new properties



An introduction to the
Wall Box Water Meter




If you experience problems following the installation of the meter, such
as low pressure, leakage or no water, please call 0845 278 0845.
This number is available 24 hours a day, 7 days a week for this purpose.
    An introduction to Southern Water’s
    metering policy for new properties
    As part of our policy for improving service   position to make meter reading, access
    to our customers we are introducing           to the stoptap and any servicing required
    a new method and location for the siting      easier for all concerned.
    of the meter and external stoptap             The door of the wall box is opened by
    in new-build properties.                      use of a triangular (utilities) key which the
    Previously, most meters and external          manufacturer will supply with the box.
    stoptaps were located in an underground       Southern Water’s service pipe is connected
    chamber with a liftable lid. This chamber     to the inlet connection point within the
    was usually installed at or near the          wall box. The water pipe supplying the
    boundary of the property, often in the        property is connected to the outlet
    pavement making it difficult for the          connection point within the wall box and
    customer to read their meter and              as such is the responsibility of the property
    turn off their stoptap.                       owner. The approved plumber will normally
    A wall box is a purpose-designed unit.        fit an internal stoptap/draincock at the
    The box is fixed to the external wall of      point where the pipe enters the building.
    the property, at a convenient height and


    The wall box has a number of significant advantages
    over the boundary box:
    For the customer/householder                  For the builder/developer
    • Easy access and safe location               • Cost effective installation.
      for the customer to read their              • Simplified internal plumbing.
      meter ‘Secured by Design’.                  • Eliminates boundary box repairs
    • No estimated readings as the meter is         resulting from damage by
      always available to the meter reader.         contractors’ vehicles.
    • Easily operated stoptap and drain           • Simple wall box connections (WRc
      off valve.                                    (Water Research Centre) approved).
    • Meter can be easily checked and             • Eliminates the need to adjust
      tested insitu.                                boundary box to footpath level
    • Clean environment for the meter               (black top levelling).
    • Southern Water will assume                  • Planning issues PPG3
      responsibility for the supply pipe.           (Pressure service corridors).
    • Reduced risk of leakage because             • Reduce reinstatement repairs/defects
      the service pipe is a continuous              during hand over to the highway
      length in a duct.                             authority.
    • No ‘lids’ in pavements or driveways.
2
Terms and conditions for the installation
of an external wall mounted water meter box
The wall box must meet the
following specification
• Compliance with Water Regulation 4
  section 1525.
• Compliance with Water Industry
  Standards (WIS) BS5422 and BS6700.
• Compliance with Water Industry
  Standard 4-37-01 frost protection.
• Compliance with current building
  regulations.
• Compliance with ‘Secured by Design’
  criteria.
• An approved product under the Water
  Supply (water fittings) Regulations 1999
• Compliance with WRc and WRAS (Water
  Regulations Advisory Scheme).




                                                                        Insulation to water
                                                                        industry specifications




                                                The wall box must not be
                                                • Altered or adapted in any way.

The wall box must be                            The wall box can be
• Fitted as low to the ground as possible       • Painted to match the building.
  without interfering with the door hinges        This applies to the outer casing only
  to the wall box.                                and must be undertaken by the
• Securely fixed to the building it supplies,     developer/customer at their cost.
  using the correct fixing screws.
• Fitted in the vertical position.              General
• Accessible to Southern Water staff,           • The wall box should be purchased
  ideally on front or side wall. The exact        direct from the manufacturer.
  position of the wall box must be agreed       • Once fitted, the customer will be
  with Southern Water prior to installation.      responsible for the wall box casing
• Installed with external wall mounted            and insulation, Southern Water will
  insulated ducting, as supplied by the           be responsible for the internal meter
  manufacturer.                                   carrier/stoptap mechanism and the meter.
                                                                                                  3
Terms and conditions for
installing the supply pipe
Ducts must be provided and laid by
the developer, from the wall box to
the highway boundary. These ducts
must be smooth in construction.
Ducts must be laid at right angles to
the street in which the main is laid.
The supply pipe/tracing wire will be
laid by Southern Water and connected
to the wall box (INLET). The service pipe
will be laid in a continuous length and
the material will normally be MDPE             Domestic installation
(Medium density polyethylene).
The (OUTLET) will be connected by
the onsite plumber.
Ducts will be suitably tagged to ensure
that the plot numbers which they serve
can be correctly identified.
Southern Water will require access rights
over the line of the service pipe and to the
wall box, for the purpose of meter reading,
general repair and maintenance.
The service pipe should be laid on the
route least likely to be obstructed, built
over or specially surfaced; its existence
should also be brought specifically to the
                                               Commercial installation
attention of the first owner as part of the
property particulars, with a request that
this be identified to a subsequent owner.
No connection can be made to the
wall box until the duct and meter box
installation has been satisfactorily
inspected by Southern Water.
                                                                         PNM0951_4a_wlbx_10.05_webpdf




                                               Southern Water
                                               Customer Service Centre
                                               Southern Water
                                               PO Box 41
                                               Worthing
                                               BN13 3NZ
                                               www.southernwater.co.uk
V4/02/06


                                 Wall mounted Meter Box
                                 Installation guidance notes                                                    W
                                                                                                                A
                                                                                                                L
                                                                                                                L
The following notes set out the general procedure and responsibilities for
installing wall mounted meter box connections in Southern Water’s area.                                         M
This document should be read in conjunction with Southern Water’s leaflet                                       O
“An introduction to the Wall Box Water Meter” and the letter of offer which                                     U
gives specific information for your intended development.                                                       N
                                                                                                                T
                                                                                                                E
    WORK UNDERTAKEN BY THE DEVELOPER                    WORK UNDERTAKEN BY SOUTHERN WATER
                                                                                                                D
•    Excavate directly beneath the position of the      •   Install a continuous length of 25mm or 32mm
     wall box to a depth of 1.2m to allow for               polyethylene pipe with a tracing wire, between      M
     installation of the wall mounted insulation duct       the wall box and the water main. The pipe will      E
     and the pipe sweep as shown overleaf.                  be pulled through the ducting by means of the
                                                            draw rope, then carefully bent through 90%          T
•    Provide and securely fix the wall box and the          using a swan-neck approach, before being            E
     wall mounted insulation duct to the wall of the        installed in the wall mounted insulation duct       R
     building, using the correct fixing screws.             and finally connected to the inlet port on the
                                                            wall box
•    Install the outlet pipe, connecting it to the                                                              B
     meter box, then running it down inside the         •   Connect the service pipe to the water main.         O
     wall mounted insulation duct and into the                                                                  X
     building.                                          •   If the Developer has opted for Southern Water
                                                            to excavate, backfill and reinstate over the
•    Provide and install 80mm rigid blue ducting            main, then this work will also be carried out.      I
     from a position 1m away from the base of the                                                               N
     wall mounted insulation duct through to a          •   Install the meter in the meter box                  S
     position 0.5m away from the water main.                                                                    T
     These ducts must be smooth in construction         •   Provide diagram / GPS reading on sticky label
     and laid at right angles to the street in which        inside the meter box, to identify the location of   A
     the main is laid. A draw rope must be inserted         the ferrule.                                        L
     in the duct and the duct must be suitably                                                                  L
     tagged to ensure that the plot number, which
     it serves, can be correctly identified.
                                                                                                                A
                                                                                                                T
•    Excavation over the water main is optional                                                                 I
     and will be as agreed at an early stage then                                                               O
     stated in the offer. If the developer has opted
     to excavate, this will also include backfilling
                                                                                                                N
     and reinstatement by the Developer. If the
     Developer is not excavating, a marker peg                                                                  N
     must be provided above ground to identify the                                                              O
     end of the duct.
                                                                                                                T
                                                                                                                E
                                                                                                                S


             Please refer to the diagram overleaf for further guidance on
                  Southern Water’s accepted method of installation.
V4/02/06




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posted:2/8/2011
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