Black overflow pipe?

Jun 09, 2005 14 Replies
A

Hello,



I'm after black overflow pipe - or similar, but it must be black or brown, NOT white!



This is for the condensation drain from an AC system, going on an external wall. White will stand out far too much, however local sheds and screwfix only stock white. The nearest I can find to what I want is 20mm black electrical conduit, (overflow is 21.5mm) however elbows for this are usually inspection type and not designed to be sealed for water. Also, would this stand up to UV if used outside?



Can anyone suggest a supplier or an alternative? I'd rather not use rainwater downpipe as it's far too big for the application.



Many thanks,



Alan.


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O

If you don't want too tight a bending radius, plastic conduit can be bent with a bending spring and boiling water. You might also be able to solvent weld the inspection covers on.

It's cheap enough to buy a length and some bits and play with it.

Should do, that's one of the reasons for using conduit outside, to protect the cable.

Owain

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E

Do as the stones do, Paint it Black. Thats what i do. You will get the paint from B & Q

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C

Yes it is UV stabilized, and should be fine outdoors. You can bend it with a bending spring, I don't know if that helps you.

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J

Marley do the lengths in chesnut brown, however not the bends (only inwhite) - alternatively why dont you use copper pipe - after a few months it will go dark brown?

Jon

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J

...... or BES do the whole system in grey???

Jon

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A

Not suitable for the acidic condensate from a condensing boiler.

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J

Well as they say you learn something every day!! Cheers Jon

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G

Where does the condensing boiler come into it? He said air con system.

Andrew

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A

Correct - it's suprising just how much water it condeses out of the air!

Alan.

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A

They're gasket sealed and are OK for an overflow.

Or you could solvent weld them.

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D

Also,

Yes, thats why you use black conduit outside !

Dave

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J

The carbon dioxide in the air will dissolve in cool condensate and "slowly" corrode the metal pipe. Even the\ dissolved amount in hot condensate causes problems in steam (process) plant

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