Flat linear drain

[momorris]

Hi all. My new patio will have a very slight fall from the garage to the house (barely noticable) but will be the same as we currently have.

Under normal rain we get very little pooling but when we do it goes quite quickly (even though we have heavy clay). I want to fit a linear drain along the garage and was thinking of then running this under the patio to our down pipe.

This pipe is a shared system and goes to the sewer, the slope from the spout must also be shallow but is under a tarmac drive so not very accesable except for the first maybe 7 inches.

The main problem really only occurs during jet washing due to the excess water being thrown down, so could i mount the linear drain with holes in the bottom to take the excess water and drain naturally or even connect a holed pipe running under the patio to a dead end with a hole to drain. This would not be connected up to anything.

Or

How would you connect a linear drain where the fall will be 0 or could even be slightly uphill?

[Dave_L]

I would just lay the channels in completely flat.

[momorris]

[momorris]

Dave L, the linear drain will be flat but its how best to get the water out.

[Dave_L]

If it is flat the water will find it's way out slowly but it will work.

We often come across problem like this....never a problem afterwards. That's the beauty of Aco channels, a godsend.

[momorris]

Thanks for that, ill just put it in then. Cheers

[momorris]

Sorry dave but im having a muppet moment, you do mean to lay it flat but into the drain pipe dont you? Or just lay it flat with natural drainage. Also should i, if it is going into the pipe have a trap to stop smells coming back?

[mickg]

i think he meant install the drainage channels level but have it connected to the existing surface water drainage system

if the drainage channel had a slight back fall due to the height of the existing drains the water would always run away bar for a small amount at the lowest point

if the drain your connecting into is a surface water drain and not a foul drain then you don't have to install a P trap

[momorris]

Thanks guys, couldnt use ACO as my supplier didnt have it in stock. I ran a pipe from the drain to the channel which is a Brett Martin channel. The pipe from the downpipe, french drain and to the linear drain now look like something out of the game mousetrap but its all underground and it works. Their was a slight fall and the connection from the guttering had a p trap anyway. I also took the opportunity to de silt it while i had it open.

Cheers