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Posted: Mon Mar 24, 2008 9:46 pm
by chucky
Can anyone give me any info on what to do.I had my drive block paved about 5 years ago.It is on a slight slope.The thing is i recently had my garage plastered and noticed damp coming through the plaster.It was only then i noticed the guy who laid the block paving looks as though he has put the drain/gully in the wrong place.The actual (original drain pipe) which is concreted around it is in front of where the guy laid the gully so the water which goes into the gully would actualy have to go backwards up a slope to drain away.It looks like the gully(if thats the proper name for it) needs moving forward and some more drainage adding to make it run into the actual drain.Will this be easy enough to do myself?Or will i need a profesional to do it? THANKYOU.
Posted: Mon Mar 24, 2008 11:43 pm
by lutonlagerlout
need you to upload a picture for this one please mate
cheers LLL
Posted: Tue Mar 25, 2008 5:34 am
by Dave_L
Sounds like you need a linear drainage channel.......
Posted: Tue Mar 25, 2008 5:51 am
by seanandruby
does the gully overflow? just because you have a slope doesnt mean the drainage slopes with it, iykwim. is it just the lower wall that is damp? Assuming that the path /drive is 150 below the damp course it may not be the drainage at fault. maybe its because garages are usually single skin walls and prone to damp ???
Posted: Tue Mar 25, 2008 9:20 am
by matt h
has block paving been laid too high? You should be able to cut into your existing channel, but cant advise as cant see site.it would depend on how he has fixed the new gully as to whether it can be moved. Regardless of its position, it should still be able to cope with the surface drainage unless it hasbeen allowed to be blocked by leaves and other debis. How long ago was the wall plastered?:)
Posted: Tue Mar 25, 2008 9:21 am
by matt h
Another thought... what's the pointing like on the garage wall?
Posted: Wed Mar 26, 2008 10:40 am
by Bobby Spray
Gulley heights can be deceiving. The top grate of the gulley may indeed be above the height of the original drain, however the important dimension is the height of the drain outlet in relation to the original drain. From your original post I guess that you are implying that the gulley doesn’t drain into the system. Can you fill the gulley with a hose, lift the appropriate manhole cover and check for flow?