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 below 75mm in a 5 minute period, the drain is deemed to have passed the test
• These test plugs have brass wingnut and caps.

Please note: if you order the 2 inch outlet in order to use the drain testing kit HO-79141, you will need to buy HO-79033 which is sold separably, so the drain testing kit will need the 2 Inch Nipple Cap - For 20 Inch Plus Plugs in order for them to use it with the Horobin - 600mm/24Inch - 2 Inch Outlet - Drain Stoppers