Stopping Infiltration through the MH Chimney
Problem: Leak of water though failed joints in sewer manhole chimney area in a tidal zone. At high tide, joints and cracks are submerged resulting in substantial inflow.
Solution: Flex Seal Utility Sealant was used to seal the joints between the risers, frame and cracks in the manhole chimney area.
Result: Inflow/ infiltration through failed joints stopped
Comments: In stopping the leak, the water authority has immediately regained the lost capacity, reduced operational and treatment costs caused by the infiltration.
![](https://iscservices.com.au/2020/wp-content/uploads/chimney1-390x250.jpg)
1) Low tide failed joints and cracks exposed
![](https://iscservices.com.au/2020/wp-content/uploads/chimney2-390x250.jpg)
2) High tide, failed joint and cracks submerged
![](https://iscservices.com.au/2020/wp-content/uploads/chimney3-390x250.jpg)
3) Flex Seal permanently sealing riser and frame