French drain - connected to what?

Foul and surface water, private drains and public sewers, land drains and soakaways, filter drains and any other ways of getting rid of water.
Post Reply
steve_f
Posts: 5
Joined: Wed Sep 18, 2013 4:49 pm
Location: London

Post: # 94688Post steve_f

Hi there. I'm thinking of getting a herringbone style French drain installed in the garden.

Can I connect this system to the public surface water sewer that is on my property?

If so, would a 1 in 100 fall be enough? I'm in the UK by the way.

Many thanks
Steve

Dave_L
Site Admin
Posts: 4732
Joined: Fri Jul 28, 2006 8:47 pm
Location: Somerset
Contact:

Post: # 94692Post Dave_L

Most certainly the answer will be no!
RW Gale Ltd - Civils & Surfacing Contractors based in Somerset

See what we get up to Our Facebook page

lutonlagerlout
Site Admin
Posts: 15184
Joined: Fri Aug 04, 2006 12:20 am
Location: bedfordshire

Post: # 94695Post lutonlagerlout

^^ 100% no no no

you need to dig a soakaway 5 M from a building and have your land drains run to that

LLL
"what,you want paying today??"

YOUR TEXT GOES HERE

steve_f
Posts: 5
Joined: Wed Sep 18, 2013 4:49 pm
Location: London

Post: # 94710Post steve_f

Thanks guys.

I'm at my wits end, I keep getting told to install french drainage to fix my issues with heavy clay, but I'm also being told that soakaways don't work in clay :(

I'm going to talk to Thames Water to see if I can get a legitimate drain installed at the end of the garden at my own cost, connected to the public surface water drain\sewer then I can have a landscaper taper the garden towards it so water goes there.

Does that sound like a plan? I'm keen that any installation makes the property easier to sell, don't want any dodgy installations blocking a sale.

Tony McC
Site Admin
Posts: 8346
Joined: Mon Jul 05, 2004 7:27 pm
Location: Warrington, People's Republic of South Lancashire
Contact:

Post: # 94894Post Tony McC

It'd be interesting how you get on with Thames Water. I probably can guess their answer, but still, hearing my prejudices confirmed can't hurt, can it!

What you refer to as a "French Drain" can only work if there is somewhere for the water to go, which usually means a soakaway, a ditch or some other watercourse. Many gardens are effectively 'land-locked' and unless you get a bunch of neighbours to club together and install a system which traverses several properties to wend its way to a suitable outfall, then there's little chance of spiriting away the groundwater on your property.

Of course, some very naughty and ill-advised people divert land drains to the SW system and never tell anyone about it. This is anti-social and places an unwarranted burden on the public sewer system, but it does happen. I'm sure you are not a naughty person!
Site Agent - Pavingexpert

Post Reply