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Drainage & Piped Services Standard Specification
Version 2014-1

 Requirement: Install pipework and gutters with adequate clearance to permit testing, cleaning and
maintenance, including painting where necessary.

 Access fittings and rodding eyes: Position so that they are not obstructed.

Installing gravity rainwater drainage outlets
 Fixing: Secure. Fix before connecting pipework.
 Method: Submit proposals.
 Junctions between outlets and pipework: Accommodate movement in structure and pipework.

Installing identification on pipework
 Application of basic identification colour: Coloured bands as BS 1710 clause 3.3.
 Safety colour identification: On or next to the colour bands.
 Information: Colour bands as BS 1710 appendix D.
 Direction of flow: Indication arrow.

System Completion

Rainwater drainage internal pipework test – England, Wales, Ireland and Northern Ireland
 Preparation: Temporarily seal open ends of pipework with plugs.
 Test apparatus: Connect a ‘U’ tube water gauge and air pump to pipework via a plug.
 Testing: Pump air into pipework until gauge registers 38 mm.
 Required performance: After a period for temperature stabilization, maintain the pressure of 38

mm without loss for at least 3 minutes.

Rainwater drainage internal pipework test – Scotland
 Testing:

 Standard: To BS EN 12056-3, National annex NE.4.2.
 Method: Air pressure test.
 Required performance: Pipework to withstand constant pressure of 38 mm water gauge for 3
minutes.

Rainwater drainage system maintenance instructions type B

 Printed instructions: Submit at completion.

 Contents: Recommended procedures for maintenance of the rainwater installation, including full
details of recommended inspection, cleaning and repair procedures.

Rainwater drainage system pre-handover checks type B

 Construction rubbish, debris, swarf, temporary caps and fine dust which may enter the
rainwater system: Remove. Do not sweep or flush into the rainwater system.

 Access covers, rodding eyes, outlet gratings and the like: Secure complete with fixings.

Documentation type B
 Operating and maintenance instructions:
 Scope: Submit for the system giving optimum settings for controls.

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McDonalds Restaurants Ltd