Horobin 375mm/15 Inch 1 Inch Outlet Drain Stoppers - [HO-73602]

Pressed Steel - For Pressure Testing New Drains and Sewers in Accordance with BS 8005 - Great Value with Excellent Strength

Features:

• All new drains and sewers laid in the UK must be subjected to an air pressure test in accordance with BS 8005
• Tests should be carried out before back filling or placing bedding or surrounding concrete, manhole to manhole, by inserting drain plugs at each end of the pipe
• Air is pumped in by hand bellows until the pressure of 100mm is indicated on the gauge
• Provided the air pressure does not fall 7 75mm in a 5 minute period, the drain is deemed to have passed the test
• These test plugs have brass wingnut and caps.