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HI, I installed agi pipe to fix a boggy backyard problem that worked but unfortunately I have noticed during a downpour that some water is running along the outside of the pvc pipe connected to the grease trap and coming in around the sides of the pipe within the greasetrap.
I feel the agi pipe trench the gravel underneath is allowing the water to hit the pvc pipe and following this smooth surface to the greasetrap.
We have a clay layer about 30cm below & seems to be clay the whole way down, I think this is the problem
Hello @bigbird21
Your agi pipe installation looks ideal. You mentioned that your agi pipe links to the PVC pipe? In what manner are they connected? Did you use a proper joiner or was it just pushed inside the PVC? If the gravel layer is lower than the PVC, then it could cause water to travel towards the PVC pipe and pass through its surroundings. Is it having a negative effect on your drainage? Is the PVC cemented in or is it just buried in soil? Was there a specific repair you wanted to apply to the drainage?
If you have any other questions we can help with, please let us know.
Eric
