Hello,

I always thought drains were 110mm but I've just seen that Tool
station has a 160mm section too. Is this commonly used?

My gutter down pipe used to discharge into a clay pipe. I have moved
the down pipe and want to tidy up the clay pipe. The clay pipe is
below ground level. I was hoping to buy a hopper and fit this to the
clay pipe to give me a nice tidy drain with grate to stop anything
falling down it.

The problem is that the hopper is standard 110mm but the clay pipe is
something else all together. The bore of the pipe is 100mm but the end
is much wider. Would you call it a spigot? If so, the spigot has an
internal diameter of 160mm. How can I fit the 100mm pipe from the
hopper into the 160mm pipe of the spigot? I was looking for some sort
of rubber "doughnut" to forma watertight seal between the two but I
cannot find them. I've googled but not found anything.

OTOH aren't clay pipes usually cemented? Should I insert the 110mm
pipe and cement around it?

Thanks,
Stephen.

"Stephen" wrote in message
news
Hello,

I always thought drains were 110mm but I've just seen that Tool
station has a 160mm section too. Is this commonly used?

My gutter down pipe used to discharge into a clay pipe. I have moved
the down pipe and want to tidy up the clay pipe. The clay pipe is
below ground level. I was hoping to buy a hopper and fit this to the
clay pipe to give me a nice tidy drain with grate to stop anything
falling down it.

The problem is that the hopper is standard 110mm but the clay pipe is
something else all together. The bore of the pipe is 100mm but the end
is much wider. Would you call it a spigot? If so, the spigot has an
internal diameter of 160mm. How can I fit the 100mm pipe from the
hopper into the 160mm pipe of the spigot? I was looking for some sort
of rubber "doughnut" to forma watertight seal between the two but I
cannot find them. I've googled but not found anything.

OTOH aren't clay pipes usually cemented? Should I insert the 110mm
pipe and cement around it?

Thanks,
Stephen.


These joints are usually made with one of these
http://www.craigtonindustries.co.uk/...ngs/C3-1-0.htm
and are readily available at any plumbers merchants. If you can describe
what you need, they will most likely have the exact one for you.

Larger than 110mm drainage is for multi-floor buildings.

There's a whole bunch of stuff to couple modern 110mm drainage to
clay.

Screwfix do a flexi-adapter:

http://www.screwfix.com/prods/19914/...exible-Adaptor

But the best product I've found is available in Wickes:

http://www.wickes.co.uk/Soil-Univers...or/invt/158824

It is sized for the rubber part to slip into the narrow portion of the
clay, with the 110mm push-fit side flaring out into the wider portion
of the clay.

Gives a close, firm, fit (lube it!) with a minimal step between 110mm
and clay.

On Sat, 22 Aug 2009 07:23:33 -0700 (PDT), RubberBiker
wrote:

Screwfix do a flexi-adapter:

http://www.screwfix.com/prods/19914/...exible-Adaptor

I have used something similar before for joining an existing clay pipe
to a new plastic one but didn't think it was quite what I was looking
for this time.

But the best product I've found is available in Wickes:

http://www.wickes.co.uk/Soil-Univers...or/invt/158824

Thanks, I had seen this at Tool station:
http://www.toolstation.com/shop/Stru.../sd2804/p96056

but I wasn't quire sure what it was for. It sounds like this is
exactly what I need. I was thinking I needed something that would
completely cover the clay pipe but you are right; it's only the middle
that is important. I'll get one of those. Thanks again.

It is sized for the rubber part to slip into the narrow portion of the
clay, with the 110mm push-fit side flaring out into the wider portion
of the clay.

Gives a close, firm, fit (lube it!) with a minimal step between 110mm
and clay.