quick Copper ???

[Anonymous]

Hi Randy,
I read you article about tap water and had a quick question about copper.
You said that it would be ok to let the water run 5- 10 min. to let mineral build up in the pipes to be washed away. Which I always do.

Will copper leach out more using cold water or hot?

The reason I ask is that, I always see it build up (residue) on my bathroom sink and tub. It's the only place in the house where I see it. I thought it might be because our hot water is mainly used in there. Any toughts?

Thanks,

 

[Anonymous]

More with hot, because that is generally run less often (pipes not cleared, water sets in contact allows some to go into solution). Of course, I could be entirely wrong.

 

[randy holmes-farley]

I'd also expect more with hot water, larely because the heat will speed the dissolution of the copper.