External drain advice

[Beetroot2021]

Hi guys

Just after a bit of advice really.

External drain keeps giving off bad smell. I thought would be because of hair/food in there so have given a good clean but seems ok.

Today I noticed it might be because the water level falls below the level of the u-bend. I wondered if this is likely just a one off or if there could be an underlying issue...?

Will probably get a professional in, but wanted to get some knowledge before I do that...!

Let me know if you've got any thoughts.

B

 

[HERTS P&D]

Check your manhole/s you have a blockage.

Post poctures.

Andy

 

[Justin Passing]

You could have one of these:

Broken gully

Hi All Looking to replace a broken rainwater gully--pics below. The old one, as can clearly be seen, is broken at the first bend. Someone has cut two slots in the face of the gully downpipe and when I excavated I found that a land drainage pipe (the yellow flexible stuff) was resting against...

www.diynot.com

or, unlikely, something like cloth laying in the bottom of the trap and beyond it, down the waste away, which can sort of siphon the water out of the trap.