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 Dehydrated copper tubing
Author: sopsnyc (NY)

I'm installing a refrigerator water line and needed about 30' of copper tubing to get from the sink to the fridge (there was no closer supply point). My question is that the only tubing that I could find that was long enough was refrigeration tube that was "dehydrated". I was told at the store that this was fine and from what I can tell "dehydrated" means that it is cleaner than general purpose copper tube. Is it fine to use or am I about to poison myself here? Thanks.

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 Re: Dehydrated copper tubing
Author: waukeshaplumbing (WI)

i dont know about the tubing question, but the max length of fridge tubing in WI is 10', so you will have more pressure loss than you should. your fridge water is slow enough normally...it may be slower

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 Re: Dehydrated copper tubing
Author: joint-runner (MA)

Yes it's cleaner and also has a very thin wall...not Legal for domestic water by any code book.

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 Re: Dehydrated copper tubing
Author: e-plumber (NY)

What you need to use would be 1/4" Type L copper tubing, any Plumbing supply house in the metropolitan area will have it in stock. I've installed long runs before without a problem, but do avoid using a self-piercing saddle valve, (which are illegal in NY), it will only lead to future troubles...


"The society which scorns excellence in Plumbing as a humble activity and tolerates shoddiness in philosophy because it is an
exalted activity will have neither good Plumbing nor good philosophy: neither its pipes nor its theories will hold water." -
John William Gardner 10/8/1912 - 2/16/2002

Repair your leaking Plumbing fixtures ASAP [www.theplumber.com]
This slow drip will waste 7+ gallons of water per day.

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 Re: Dehydrated copper tubing
Author: jimmy-o (CA)

Type ACR copper ( refrigeration tube) is sold in 5' to 50' coils which are cleaned and dried and capped to maintain cleanliness. This is so that you can connect it directly to a refrigeration system without worry. It is very similar to type M copper in wall thickness. Around here, any copper in 3/8" and 1/4" OD sizes is almost always ACR in residential like dishwashers, refrigerators, water filters, etc. As far as I know, it is perfectly legal under the California Plumbing Code. If it is not, we have beeen screwing up for years!

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 Re: Dehydrated copper tubing
Author: royboy (SC)

It is cleaner because of dry nirogen being passed through it to purge any contaminates for an air conditioning use. It would work fine for your intended use. Yes, it is thinner because it is not "L" sized copper. Think of it as "M" soft copper.

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 Thanks to everyone
Author: sopsnyc (NY)

Thanks to everyone for their help. I think I'm going to go ahead and use the tubing that I have. I just wanted to make sure that I wasn't going to poison myself because the refrigeration tubing was treated with some sort of caustic chemical. Thanks again.

Edited 1 times.

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