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Cleaning old (OLD) copper pipe.
Posted: Tue Apr 23, 2013 11:41 am
by juniperlover
So a friend asked me to help him remodel an old house (from around the turn of the century I believe). So I go check it out and he leads me to the sub basement where I procede to notice an old unused irrigation system. I asked about it and he said that the previous owners had installed a new system and left all the old pipe just hanging around. I'm literally talking HUNDREDS of feet of 2" and 3" copper here people!!! Bottom line, I want it. I've been looking at building a new reflux column and my wallet is thinking that it's a bad idea...but if I had all that pipe...? Anyway, I want to know if I can clean this stuff. As I mentioned, it's very old and very dirty. What's the best way to make it clean and safe again? I'm thinking a lot of brushing and sanding on the outside, and a few vinegar soaks to be sure. Any other ideas? Anything I should be wary of? Thanks!
Re: Cleaning old (OLD) copper pipe.
Posted: Tue Apr 23, 2013 12:14 pm
by ipee7ABV
orange juice lots of options. just watch out for lead.
Re: Cleaning old (OLD) copper pipe.
Posted: Tue Apr 23, 2013 12:19 pm
by juniperlover
Is there a test I can do for the presence of lead?
Re: Cleaning old (OLD) copper pipe.
Posted: Tue Apr 23, 2013 1:57 pm
by Coyote
Get a lead test at your local hardware store
Or just cut any solder joints out and toss them
Coyote
Re: Cleaning old (OLD) copper pipe.
Posted: Tue Apr 23, 2013 3:58 pm
by NcMoonLight
Sell some pipe on here for a real good price then youll be able to pay for any projects you wanna do. I know id buy some from ya
Re: Cleaning old (OLD) copper pipe.
Posted: Tue Apr 23, 2013 5:27 pm
by Truckinbutch
NcMoonLight wrote:Sell some pipe on here for a real good price then youll be able to pay for any projects you wanna do. I know id buy some from ya
Sounds like a helluva good idea . That sort of scrap should vanish very quickly if offered here .
Re: Cleaning old (OLD) copper pipe.
Posted: Tue Apr 23, 2013 5:29 pm
by wv_hillbilly
Jealousy, why can't things like this happen to me. Everyone is right, I'm sure that stuff will be taken off your hands very quickly here. Then you have some spare cash for grains.
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Re: Cleaning old (OLD) copper pipe.
Posted: Wed Apr 24, 2013 12:55 pm
by juniperlover
I'll talk to my friend and see what he thinks!
Re: Cleaning old (OLD) copper pipe.
Posted: Wed Apr 24, 2013 1:04 pm
by Halfbaked
Is the pipe DVM. I might have that incorrect. drain vapor ???? The real thin stuff or like L or K?
Re: Cleaning old (OLD) copper pipe.
Posted: Wed Apr 24, 2013 1:54 pm
by rad14701
halfbaked wrote:Is the pipe DVM. I might have that incorrect. drain vapor ???? The real thin stuff or like L or K?
DWV (Drain/Waste/Vent)
Re: Cleaning old (OLD) copper pipe.
Posted: Wed Apr 24, 2013 7:03 pm
by juniperlover
It looks to be a pretty heavy stock, I'd say L or (M?). Based on the setup, it looks like it ran from the original pump, to a cistern (yes, the house has a 15'X7' cistern), and then pumped from there off to the rest of the house. It was definitely not used as a waste removal system though.
Re: Cleaning old (OLD) copper pipe.
Posted: Wed Apr 24, 2013 8:47 pm
by Dnderhead
if you want ,try a "flap" wheel on a extinction/drill..
Re: Cleaning old (OLD) copper pipe.
Posted: Wed Apr 24, 2013 9:12 pm
by mash rookie
Any acid soak will clean it up easily. A mild citric to a modest muratic solution would work. You can do a reverse electrolysis too.
Re: Cleaning old (OLD) copper pipe.
Posted: Wed May 01, 2013 12:11 pm
by CRACKERCREEK
mash rookie wrote:Any acid soak will clean it up easily. A mild citric to a modest muratic solution would work. You can do a reverse electrolysis too.
muratic acid will clean it up? Id think it would really eat it up,no? is something like lemon juice better than say white vinegar.
Re: Cleaning old (OLD) copper pipe.
Posted: Wed May 01, 2013 2:27 pm
by mash rookie
You dont use it full strength. Start with a 25% solution and increase as necessary to clean it in a reasonable time. It will loose strength as you clean more pieces.