Gulley Drain will need to be sealed off from the inside

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Hi there,
Is there anybody who is able to temporarily seal off the gulley drain opening from the inside or permanently seal this off and create a new opening outside our lean-to extension?
I know that this can be very expensive indeed to have this job done properly but due to limited budget, I am thinking of sealing it off with a thick PVC board. Current setup is using a vinyl flooring cut to size and cloth-taped it but we keep on doing this annually as it doesn't last long enough. Above this drain is an overhanging wooden wall so the dirty and rain waters can still flow into the drain from the outside. Since the floor level outside is about 2-3 inches lower so in the event of the flood, the dirty water does not flood the extension but spilling to outside. Please see photos for clarification.

Gulley%20from%20Inside.jpg


Gulley%20from%20Outside1.jpg


Lean-to%20Extension%20-%20Angle%20View.jpg


Plan%20of%20lean-to.jpg


Slideshow here => http://s896.photobucket.com/user/lightrays-photo/slideshow/

I am based in Cardiff, South Wales.

Regards,
Simon
 
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ree

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Remove the taped on cover over the gulley. Clean out the gulley trap with a gloved hand.

The gulley should have an appropriate diameter iron grid.

Ref. the two white waste pipes discharging into the gulley:
- drop the upper pipe straight (vertical) down to tee into the lower pipe
- then run the lower pipe into a tee branch in the RWP. Use a reducer fitting.
- You can now take the discharge from all three pipes into the gulley thro the end of the RWP. Use a down facing shoe or 90 degree bend.
You now have only the one RWP discharging into the gulley.

Cover the openings below the rotten woodwork with a homemade sheet of customised tin. Perhaps build up a fillet of semi-dry sand & cement to assist in blocking up any access to below your lean-to floor. Rodents could nest under the floor or come and go thro a gulley with no grid.
 
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Could try asking in the Building Forum, (dont repeat yourself too much, if you ask for advice regarding a gulley and link to this page), and see if anyone in there could help? Alternatively, are you confident enough to take on moving the gulley?
 
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Actually, I am not that confident in doing this move myself.

Ref. the two white waste pipes discharging into the gulley:
- drop the upper pipe straight (vertical) down to tee into the lower pipe
- then run the lower pipe into a tee branch in the RWP. Use a reducer fitting.
- You can now take the discharge from all three pipes into the gulley thro the end of the RWP. Use a down facing shoe or 90 degree bend.
You now have only the one RWP discharging into the gulley.

Ree, are you able to illustrate by drawing what you have described? What is RWP? Is this an underground water waste?
 
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RWP - Rain Water Pipe

Not to second guess Ree Sk but if you connect the 2 white waste pipes together prior to getting to the black rain down pipe using a T, you now have 1 white waste pipe, then connect that to the black rain water pipe. That means you're left with only one black pipe running along the ground to the gulley. Much easier to deal with.

Image1.jpg
 

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