The builder constructed a soakaway for our new extension (just a hole filled with rubble) 5m away from the extension.
However, there gully (not a trapped version) where the guttering downpipe ends, is always full of water, even if there was no rain for a few days.
I tested it, by adding 10L of water and it does not overflow, but does not empty either.
Is this normal?
I am concerned that either the underground pipe going into soakaway is not laid with a required 1/40 fall or is already partially blocked.
However, there gully (not a trapped version) where the guttering downpipe ends, is always full of water, even if there was no rain for a few days.
I tested it, by adding 10L of water and it does not overflow, but does not empty either.
Is this normal?
I am concerned that either the underground pipe going into soakaway is not laid with a required 1/40 fall or is already partially blocked.