Advice needed - new patio & aco brickslot

[M@tt]

I'm in the process of relaying my patio and also block paving the section of driveway in front of my workshop.

However i think i may have a slight issue with levels on the patio. The patio previously looked like it had very little run off gradient although it never suffered from standing water, however i think that may have more been down to the cracked and missing pointing and slabs rather than gradient.

So the plan is to relay the patio with some better quality reclaimed sandstone paving as the previous stuff was very thin (~1" thick) and a lot of it had stared to de-laminate.

I have been looking at the ACO brickslot drainage channels as i think its slimline design fitted up against the wall of the house will be alot more inkeeping with the house (c1800) rather than some standard ACO drainage across the middle of the patio.

http://www.aco.co.uk/product_detail.php?id=11

one slight issue i see with this is that presently there are 2 drains against the house wall, one takes the water from the kitchen sink/washing machine/dishwasher and the other takes the rainwater from the guttering. Both these feed into some underground waste pipework.

would it be acceptable to fit a couple of corner units where the current drains are and have the guttering/outlet pipe feed into those and then fit a P bend under the channel and mate it up to the existing drainage.

I've included a few photos which might help illustrate the issue







cheers

[Pablo]

Hi Matt, I've never had to fit a brick slit arround a gully before so I can't think of a solution all I can think of are problems. There sre some gully tops that are sort of cantilevered so perhaps you could move the gully 100mm out from the house put the slot behind it and put the new top on so it over hangs to slots mainbody and would almost fill the space left. I'm almost certain that pipe is water and whilst you've got the paving up it might be prudent the replace the whole thing it will be slowly poisoning you after all. Also I think that the sub base needs to be reduced further it still looks very high on the house given that you have mot and paving to go back down.

[seanandruby]

Can't see it clearly but could'nt you use back inlet gullies, and stop your channel short and connect with a length of flexi pipe, or rigid ? Use square top gullies.

[Pablo]

Another issue I foresee is if you cover the slot body with solid paving then you'll have to make some sort of allowance for cleaning it out every so often.