Are there really two different types of plastic waste pipe?
According to my book "The Readers Digest DIY Manual" it
says uPVC is used for cold water waste but I must use MuPVC
pipe for hot waste water such as from sinks and showers.
I never knew there was different type of plastic waste
pipe? How do you tell them apart? The book says they can
both come in white / grey / black etc.
--
David in Normandy

David in Normandy wrote:

Are there really two different types of plastic waste pipe?

There are... commonly polypropylene and PVC. The former used with
solvent weld fittings, and the latter used with pushfit.

(Univesal (i.e. compression style) fittings can be used on either).


According to my book "The Readers Digest DIY Manual" it
says uPVC is used for cold water waste but I must use MuPVC
pipe for hot waste water such as from sinks and showers.
I never knew there was different type of plastic waste
pipe? How do you tell them apart? The book says they can
both come in white / grey / black etc.

As far as I am aware all waste pipes that you are likely to buy are
suitable for waste connections - regardless of the water temperature.


--
Cheers,

John.

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On Tue, 11 Dec 2007 18:56:58 +0100 David in Normandy wrote :
Are there really two different types of plastic waste pipe?
According to my book "The Readers Digest DIY Manual" it
says uPVC is used for cold water waste but I must use MuPVC
pipe for hot waste water such as from sinks and showers.
I never knew there was different type of plastic waste
pipe? How do you tell them apart? The book says they can
both come in white / grey / black etc.

The pipe should be marked, but also IME the solvent weld fittings
are different: with regular ones the socket is no more than a
larger diameter pipe, whilst muPVC ones have a stiffening band
round the mouth of the socket.

--
Tony Bryer SDA UK 'Software to build on' http://www.sda.co.uk

"John Rumm" wrote in message
...
David in Normandy wrote:

Are there really two different types of plastic waste pipe?

There are... commonly polypropylene and PVC. The former used with solvent
weld fittings, and the latter used with pushfit.

Polypropylene solvent weld? ABS surely, PP doesn't dissolve in much.

cheers,
clive

In article ,
Tony Bryer writes:
On Tue, 11 Dec 2007 18:56:58 +0100 David in Normandy wrote :
Are there really two different types of plastic waste pipe?
According to my book "The Readers Digest DIY Manual" it
says uPVC is used for cold water waste but I must use MuPVC
pipe for hot waste water such as from sinks and showers.
I never knew there was different type of plastic waste
pipe? How do you tell them apart? The book says they can
both come in white / grey / black etc.

The pipe should be marked, but also IME the solvent weld fittings
are different: with regular ones the socket is no more than a
larger diameter pipe, whilst muPVC ones have a stiffening band
round the mouth of the socket.

Standard muPVC is also used as flue pipework for some
condensing boilers (such as Keston). I don't think it's
commonly used for waste pipework -- for solvent weld,
thats usually uPVC pipe, and uPVC or ABS (yuk) fittings.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]

On 11 Dec 2007 19:43:12 GMT Andrew Gabriel wrote :
Standard muPVC is also used as flue pipework for some
condensing boilers (such as Keston). I don't think it's
commonly used for waste pipework -- for solvent weld,
thats usually uPVC pipe, and uPVC or ABS (yuk) fittings.

IIRC the makers say that muPVC should be used where there is a
likelihood of the pipe taking very hot water for extended periods
- most probably in commercial applications.

--
Tony Bryer SDA UK 'Software to build on' http://www.sda.co.uk

Clive George wrote:
"John Rumm" wrote in message
...
David in Normandy wrote:

Are there really two different types of plastic waste pipe?

There are... commonly polypropylene and PVC. The former used with
solvent weld fittings, and the latter used with pushfit.

Polypropylene solvent weld? ABS surely, PP doesn't dissolve in much.

You have got me thinking now.... I could have sworn that the last
solvent weld pipe I bought had polypropylene written on it - but ABS
would make more sense.


--
Cheers,

John.

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| Internode Ltd - http://www.internode.co.uk |
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