A vacuum test of precast manholes should be performed to determine their resistance to the infiltration and exfiltration of water. The amount of vacuum lost over a specified time period will determine if the manhole is to be accepted. This test allows for greater control regarding the integrity of manholes. A vacuum test can be done in 20 minutes -start to finish. It is the fastest and most cost effective method of testing manholes.

Our vacuum system utilizes a 5 H.P. Briggs & Stratton engine, along with a Gast vacuum pump capable of pulling up to 40 CFM. Our pneumatic disc assemblies are available for manholes 20"- 36" in diameter. A 38" and 44" Aluminum flat plate are also available. All hoses, valves and gauges are included. Custom sizes are also available.

Vacuum Testing Equipment | High Pressure Plug | Pipe Plugs
Domehead Plug | By Pass Plugs | Custom Designed Plugs