Central Heating pipes for Cold feed

[youngrob]

Hi,
I wonder if anyone could advise on the following please. I am in the process of extending a house and one of the tasks has been to strip out the existing radiator pipe (15mm copper) work at the back end of the house to allow for an extension - the radiator circuit will be extended once the shell is in place. Basically I need to extend my existing 15mm cold /hot water feeds into the extended area and I want to know if i can reuse some of the 15mm copper pipe that was previously used for the radiator flow and return?

Thanks

 

[Rob Foster]

There is no real reason why not, but beware joining up old pipe can lead to poor joints and the temptation to use shorter lengths and more joins. Fewer joins lead to more potential leaks. centralheatking

 

[Sharp Point]

Do you mean re-use the old heating pipework for the new hot and colds? If so, I’d recommend definitely not.

 

[Ben-gee]

No don’t!
It has had horrible chemicals running through it for years. By all means use it fir your central heating but please buy some new stuff for your hot/cold water services.
Your gonna drink that stuff!

 

[Ben-gee]

A few quid on new pipe when your spending thousands on an extension- don’t be tight!
There’s things to save money on, but not your drinking/washing water.

 

[townfanjon]

Even a tight arse Yorkshire man like “ yours truly “ wouldn’t do that .
NO !!!!!!!

 

[Tim S]

If there's that much of it just take it and weigh it in.. but don't try and re-use it for any potable supplies

 

[Burger]

Hi,
I wonder if anyone could advise on the following please. I am in the process of extending a house and one of the tasks has been to strip out the existing radiator pipe (15mm copper) work at the back end of the house to allow for an extension - the radiator circuit will be extended once the shell is in place. Basically I need to extend my existing 15mm cold /hot water feeds into the extended area and I want to know if i can reuse some of the 15mm copper pipe that was previously used for the radiator flow and return?

Thanks

In agreement with all others, please do not use previously heated copper pipes for potable (safe for drinking) water. One of the water regulations is to keep the cold water below 20-25 degrees to prevent bacterial growth. You want to try and use pipes that have potentially been heated to 80 degrees, not to mention any magnetite in there? 😱😱😱

 

[Cecilia V]

I agree with the others. The risks are high.

 

[Last Plumber]

Ew no, not healthy and a breach of regs.

 

[Stigster]

There is no real reason why not, but beware joining up old pipe can lead to poor joints and the temptation to use shorter lengths and more joins. Fewer joins lead to more potential leaks. centralheatking

Fewer joins = less potential leaks, surely? (I know, don't call you Shirley! ;-)