Are plastic manholes water tight? 

Similar to plastic sewerage piping systems, plastic manholes show no leakage which results in no contamination of the soil by
ex-filtration and no infiltration of the ground water into the manhole.

Details:

  • Plastic manholes always use rubber joints for inlets and outlets, and holes are made easily by cutting with drilling cores or saws.  
  • Water-tightness is important to avoid leaks from sewers that contaminate the environment
  • But it is even more important when, in the case of high water level, infiltration of water into the collector pipe means a higher volume to be sent to the water treatment plant, with a higher cost for this reason.
  • All plastic manholes are tested according to the EN476 ( 0,5 bar).

Want to know more?
Refer to Manufacturers documentation