63mm Rainwater downpipes?

Tortoise · 11 Aug 2011

I need to cut into an existing rainwater downpipe to unblock it. So I'll need a couple of connectors to refit the missing section afterwards.

Unfortunately, it's 63mm pipe and everywhere seems to only stock 68mm fittings these days.

Does anyone know where I can get 63mm fittings, or have an alternative solution?

Thanks.

DAZB · 11 Aug 2011

You'll probably find you have cast or aluminium fittings so these should be some use to you :

http://www.ngsplastics.co.uk/rainwater-systems/downpipes/aluminium-round-downpipe-63mm-76mm

http://www.drainageonline.co.uk/Evolve-63mm-Circular-Downpipe/Pipe-Socket-Uneared.htm

Tortoise · 12 Aug 2011

Thanks for the suggestions - but the problem is they're plastic fittings!

Hugh Jaleak · 12 Aug 2011

Wont look pretty but one of these the appropriate size would do the job: http://www.flexseal.co.uk/productpage.php?ID=18

Alternative is to replace the pipe.

Blagard · 12 Aug 2011

Tortoise said:
I need to cut into an existing rainwater downpipe to unblock it.

Are your really sure that you need to cut it ?

By removing pipe brackets and checking the play in the ends, some rainwater pipes can be "sprung out". Alternatively consider replacing the downpipe. Also after removing the brackets you may find you are able to drop the pipe into the drain to uncouple the socket at the top.

Tortoise · 12 Aug 2011

Thanks for the replies.

Those connectors might do the job, though as you say, they won't look that pretty!

The reason why it needs cutting is that it's cemented in at the bottom. So, short of breaking up the front doorstep, I think it needs to be cut.

Blagard · 12 Aug 2011

Tortoise said:
The reason why it needs cutting is that it's cemented in at the bottom. So, short of breaking up the front doorstep, I think it needs to be cut.

It is quite usual for builders to cement around the connection as part of the work to finish off the paving locally. The thing is, cement does not bond that well to the PVC so you may find that with a good twist you may be able to free it. Certainly worth trying before you go for cutting. I have on a number of occassions managed to twist out old waste pipes cemented in walls, but those pipes are easier to grip and the surface contact will be less too.

Tortoise · 13 Aug 2011

That's an interesting suggestion - I hadn't thought of that. I'll give it a try...

Thanks very much.

Jimbo2308 · 4 Feb 2014

I had the same problem in Jan 2014 when I tried to repair my garage rainwater pipe. I found it was made with a Rymway 63mm system. This is a discontinued line and the company no longer exists. The standard diameter is now 68mm. I nearly spent a lot of money on alutec evolve 63mm aluminium pieces. Then I found a silicone reducing pipe on ebay which allowed me to connect 68mm to 63mm using a 70mm-51mm silicone reducer for around £7. The 68mm Marley pipe fits nicely into the 70mm end and the 63mm rymway pipe fits nicely over the 51mm end. Sorted!

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63mm Rainwater downpipes?

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