I have a problem with occasional flooding into the garage following some
building work by a neighbor hes trying to fix it but I want to fit a
drainage gully in front of the garage to provide protection as required.

The drive is block paved so I can remove a row of bricks fit the gully
and link it to a soak away which handles the garage roof my question is:-

I guess I need an flow along the gully down to the drain start how do I
get that (its about 4M) without having the gully stand proud at the
start ? or is a couple of mm along that length going to be enough?

Any other tips thoughts etc appreciated.

JD

"JD" wrote in message
...
I have a problem with occasional flooding into the garage following some
building work by a neighbor hes trying to fix it but I want to fit a
drainage gully in front of the garage to provide protection as required.

The drive is block paved so I can remove a row of bricks fit the gully and
link it to a soak away which handles the garage roof my question is:-

I tried that, as my garage has similar problems. In theory, the water should
go straight past the door and out into the road, but practice and theory
differ when there is very heavy rain. I found that, when the rainfall was
high enough to cause the problem, the gully and its pipework quickly filled
and only slightly reduced the amount of water that got into the garage. I
had to fix a strip of rubber speed bump material on a thick bed of mastic
just inside the door to cure the problem.

Colin Bignell

nightjar nightjar@ wrote:
"JD" wrote in message
...

I have a problem with occasional flooding into the garage following some
building work by a neighbor hes trying to fix it but I want to fit a
drainage gully in front of the garage to provide protection as required.

The drive is block paved so I can remove a row of bricks fit the gully and
link it to a soak away which handles the garage roof my question is:-


I tried that, as my garage has similar problems. In theory, the water should
go straight past the door and out into the road, but practice and theory
differ when there is very heavy rain. I found that, when the rainfall was
high enough to cause the problem, the gully and its pipework quickly filled
and only slightly reduced the amount of water that got into the garage. I
had to fix a strip of rubber speed bump material on a thick bed of mastic
just inside the door to cure the problem.

Colin Bignell


Now I did have some success using a length of wood in a similar
technique where did u get the speed bump material?

I had the exactly same problem. I fitted the gully across the front of the garage & the rest of house approx 4m. You do need a fall (a few mm is insufficient - more like 2/3 inches I would say). The only way I could do it is to create the fall on the channel with dabs of mortar, & then build up the sides with mortar to create a level with the blocks on which the metal grate sits. This then appears perfectly level, but there is a fall on the channel itself.
Note - for those having block paving/hard standing, always plan for drainage!

"JD" wrote in message
...
nightjar nightjar@ wrote:
"JD" wrote in message
...

I have a problem with occasional flooding into the garage following some
building work by a neighbor hes trying to fix it but I want to fit a
drainage gully in front of the garage to provide protection as required.

The drive is block paved so I can remove a row of bricks fit the gully
and link it to a soak away which handles the garage roof my question is:-


I tried that, as my garage has similar problems. In theory, the water
should go straight past the door and out into the road, but practice and
theory differ when there is very heavy rain. I found that, when the
rainfall was high enough to cause the problem, the gully and its pipework
quickly filled and only slightly reduced the amount of water that got
into the garage. I had to fix a strip of rubber speed bump material on a
thick bed of mastic just inside the door to cure the problem.

Colin Bignell


Now I did have some success using a length of wood in a similar technique
where did u get the speed bump material?

Key Industrial Equpment, although it is expensive stuff and I only used it
because I had some left over from my factory. If I had not had that to hand,
I would probably have bought some aluminium strip, say 1" x 2", and fixed
that down. You do need a few hammer-in frame fasteners or the like to hold
whatever you use in place, otherwise it will move when the car drives over
it.

Colin Bignell

Pufter wrote:
JD Wrote:

I have a problem with occasional flooding into the garage. I want to fit
a drainage gully in front of the garage to provide protection as
required.
The drive is block paved so I can remove a row of bricks fit the gully
I need a flow along the gully how do I get that (its about 4M) without
having the gully stand proud at the start ?

JDI had the exactly same problem. I fitted the gully across the front of

the garage & the rest of house approx 4m. You do need a fall (a few mm
is insufficient - more like 2/3 inches I would say). The only way I
could do it is to create the fall on the channel with dabs of mortar, &
then build up the sides with mortar to create a level with the blocks on
which the metal grate sits. This then appears perfectly level, but there
is a fall on the channel itself.
Note - for those having block paving/hard standing, always plan for
drainage!


The gully just needs to run across the garages they are detached and
stand behind the house do I really need 2-3" that seems a heck of slop
over 12ft given the gully depth.

Well my drainage issue is caused by the fact that in heavy rain next
doors down pipe (they only have one now for the rear roof) cant cope
and fills and then runs right over the fence and lands on my drive right
in front of the garage doors. They have tried various adjustments to the
drain but to be honest the design of the full roof running to a single
pipe is crap we have 2 down pipes one at either corner and dont have a
bloody great extension like they do.