Surface water connection to sewer

[Willy87]

Hi good afternoon I’m after a little advice please I’ve got a front garden which is built on clay soil 1970 ex council house. Next door has the drain for roof water in there garden so I’m left with no where to drain my water fall from footpath is towards the house I have an alleyway at side of house with a combined manhole down the bottom of alleyway in the back garden I’m wondering if I can just run a pipe with bottle gully straight into this manhole as water will not drain through clay soil and a soak away is not possible thanks

 

[^woody^]

When you say "will not" drain through the soil, do you actually know this or just guessing.

Where has all the water from your whole street been going all these years? The rain on the grass, the daffodils?

But the answer to your question it's no. Well not lawfully anyway.

 

[Willy87]

The rain from the street goes into the gullies on the road and the rest from peoples drives looking at the makeup of the ground run to the house then down the alleyway into the drains in back garden. I’m not guessing the water doesn’t drain as the ground in clay for a good 800mm as I installed new water feed and hand dug it out the trench is still open approx 300mm from the surface hence the water sitting in the trench and not soaking away. Worried about it sitting up agains house incase it causes any damage thanks

 

[Hugh Jaleak]

Where is 'your water' going currently?

 

[Willy87]

It’s not going anywhere to be honest mate literally water logged the garden and now sitting in the trench that’s the problem I’m facing

 

[Hugh Jaleak]

I would suggest you do a Percolation test first, to ensure a soakaway is not a viable option.

If you are paving over the front then Planning Permission is required, otherwise I would speak to Building Control before doing anymore, get their take on it. If there is no other suitable method for disposal of rainwater, drainage to a combined sewer is usually permitted as a last resort.