I would be very grateful for advice on what piping would best survive sustained periods of low temperatures (down to -20C). Have tried plastic piping (tubo) but even when lagged and drained it goes brittle after a couple of years being subjected to winter lows when house is unoccupied and then shatters!
Piping to survive sustained periods of low temperatures!
- Thread starter NFJ
- Start date
It's for the hot and cold water supply for the house. We have drained it thoroughly at the onset of winter - it is basically unoccupied for 4/5 months. The breaking pipes are not therefore the result of water expanding but rather the plastic piping getting brittle after 2/3 years of this cycle of cold. When the water is then re-introduced in the spring it just shatters. Not sure therefore whether anti- freeze would help but appreciate the advice.
could try trace heating under the lagging 
I had a burst once when I lived in London. Incoming copper pipe in loft froze and forced apart a compression joint
Would blue or black polypipe have enough elasticity?
I had a burst once when I lived in London. Incoming copper pipe in loft froze and forced apart a compression joint
Would blue or black polypipe have enough elasticity?
Yes John that's why you winterize it, (drain it out) it wont freeze if it ain't got no water innit.
If you must soft copper is much thicker, but you need to braze or use swagged fittings.
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dint they used to put that in the wine?
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