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Old 3rd December 2003, 06:26 AM   #1
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Default Plumbing help

ok diy gods -- i need some help --

long story short -- i hae a leak in the ceiling -- found it by cutting some holes. galvanied pipe to copper, massive corrosing -- leak. Piping here is very old, no shutoff valve for that line, so therefore i have no water in the entire house and no heat -- cold night..

Whats the best fix here -- replace the galvanied pipe entirely and resolder a new copper connection? I am not experienced with plumbing but i think this is simple enough for me to take on. I have a butane torch, and a rotozip saw to cut pipe.

here are some pix

Click the image to open in full size.
close up1

Click the image to open in full size.
close up 2 -- how does the copper hooked up to the gal pipe? i know it is gal to reducer to copper - but does the copper solder or is it screw in as well?

tia guys

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Old 3rd December 2003, 06:42 AM   #2
jleaman is offline jleaman  Belgium
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well you may have no water. But prince Rupert island in Canada B.C has no gas the entire island is with out natural gas because of a land slide just out side of town witch has knocked off all gas to the rupert area : O(

HAHAHAH glad i don't live there any more...
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Old 3rd December 2003, 07:55 AM   #3
Netlist is offline Netlist  Belgium
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If you don't have the right tools to fix this I suggest you try with plastic pipes and connectors. Cut out the bad pieces and replace with above mentioned.
Something like this:

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Old 3rd December 2003, 01:09 PM   #4
Schaef is offline Schaef  United States
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Default Plumbing in an audio group???

Okay, a couple of things here. First, where does the galvanized go? Is it the main feed to the house or is it an end point that connects to something in the house?

If its an end-point, then I'd say replace the entire galvanized run with copper (or plastic, your choice) If its the main feed to the house, then I'd say call a plumber and have them do the work. (hate to say it, but that's the way I'd approach it)

As to the galvanized to copper connection, if its done right, there are connectors for this that work to reduce the problem you're seeing. It will solder onto the copper and be a screw on, onto the galvanized pipe. Translation, if you're looking to just replace the joint, you'll need some way to cut new threads on the galvanized pipe. (not cheap)

Personally, I'd look at replacing the entire run of galvanized with copper, you'll more than likely find that the galvanized is almost completely blocked with gunk inside.
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Old 3rd December 2003, 02:03 PM   #5
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cheap route:

1. cut back the galv. pipe a foot back and buy a brass sweat will need silver solder or sylfoss to braze on the the Galv. pipe

make sure place a valve on to isolate the rest of the system because you will have to drain it

2. expensive route: tear the Galv. pipe right out and replace with copper
The Galv. pipe will have so much crud in it that you will probably want to go this route.

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Old 3rd December 2003, 02:08 PM   #6
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Take this picture to Home Depot and they will advise you what you need. Make some measurements of the pipe sizes as well.
“Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC
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Old 3rd December 2003, 02:11 PM   #7
sully is offline sully  United States
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I believe you are having the problem because of galvanic corrosion..

Call in a have code issues as well as long term corrosion issues to contend with..

Sometimes, the right person for the job is another person..I would not undertake that project myself, even though I do a lot of diy plumbing..

Cheers, good luck...John
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Old 3rd December 2003, 04:17 PM   #8
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thanks guys, from the advice here and other forums i am going to replace the entire length of the pipe with copper - and use a dieletric union this time -- this is what caused the corrosion last time.. the help from forums is the best, thanks ;D

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Old 4th December 2003, 12:19 AM   #9
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while i was doing this research my parents called a plumber -- he came and wanted $780 to fix it! so they turned to me and i went to home depot, spent $13 on parts and fixed it in 3 hrs -- thanks for the help guys

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Old 4th December 2003, 02:03 AM   #10
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crazy plumber...$780?? I could redo the almost the whole house with that...haha....but seriously did he really ask for 780 just for that section or for more??
Kids in the back seat cause accidents...Accidents in the back seat cause kids...
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