I have a rolh pot filler and my contracter inadvertently put a hot water line to it, will this present a longterm problem?

No.

Hi GLC

No long-term problems, but specifications will show that cold water is for cooking, not hot water... UGH!

It shouldn't really be too big a hassle to switch the pot filler over to cold water.

I'm glad to discuss more if you want!

Mark

Call your plumber back and have him run cold water to the pot filler, this should be a simple operation with no cost to you. Good luck, Tom

A separate line was run under the floor to the wall from main line so I'm not sure how easy it would be to get cold water line there without tearing up floor again,. My experience with this plumber my contract use has not been good, have quote for whole job on kitchen then everything he quotes he ignores and tries to charge more " cause the "quote" didn't include that... Even though his quote was 150% above what contracter estimate for job

Anyone know an honest plumber in Atlanta GA?

Considering you heat most water and it takes some cold water to get to the pot filler, I would let it alone rather than tearing up the floor. PS I live in Woodstock.

I don't know... seems to me that the pot filler was specified to use cold water and the contractor screwed up and should fix it.

In terms of long-term health issues, one can argue that hot water leaches lead from older pipes at a much faster rate than if using water from a cold water pipe.

Click this link for more info.:

Why You Shouldn't Use Hot Tap Water When Cooking

Another article saying the same thing:

How Safe Is Your Kitchen? | RealSimple.com

I could also argue that hot water probably has a higher salt content due to the anode rod grabbing the anions in solution and making compounds like MgBr2, and salts like MgCl2, etc. and that probably isn't great in the long run either.

Anyway, just thinkin' aloud is all...

Mark