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Old 08-05-2011, 06:17 PM
txirrigation txirrigation is offline
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Galvanized Supply Line?

Well we ran across a first today. What are the reliable ways of tapping a galv supply pipe?

Thanks in advance!
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  #2  
Old 08-05-2011, 06:23 PM
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Wet_Boots Wet_Boots is online now
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Maybe the safest way is with a waterworks compression tee.
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Old 08-05-2011, 06:26 PM
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irritation irritation is offline
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Brass compression tee. Depending on how old it is and water quality, you may need to ream it out first. I've seen 1" galv pipe clogged from the street to the house at about 1/4" inside diameter.
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Old 08-05-2011, 06:40 PM
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greenmonster304 greenmonster304 is online now
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Good luck. Back in may I did a job that had a 2" galvanized service line from the street. I tapped inside the crawl space where it turned to CU and got about 7 gpm at 40 lbs. It sucked. I imagine that the 2" is closed up to about 1/2".
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Old 08-06-2011, 12:24 AM
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mitchgo mitchgo is offline
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Boots or irritations ways are really good

Personally I would tap new threads on the galvi and install 2 unions on either side of the tee, or use the meter's union.
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Old 08-06-2011, 12:30 AM
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FIMCO-MEISTER FIMCO-MEISTER is offline
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Replace the galvanized. Like Irritation says it's probably 1/4". I flat will not work on a galvanized irrigation system or tap into a galvanized line and Dallas had plenty. Copper shortages especially during the Korean War led to a few getting put in.
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  #7  
Old 08-06-2011, 12:52 AM
SoCalLandscapeMgmt SoCalLandscapeMgmt is offline
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Cut it, thread it and use SCH 80 unions and tee to make your connection
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Old 08-06-2011, 12:53 AM
SoCalLandscapeMgmt SoCalLandscapeMgmt is offline
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We still have one account with an all galvanized hydraulic system..... Any time we have issues we ut and thread.
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Old 08-06-2011, 01:10 AM
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mitchgo mitchgo is offline
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Quote:
Originally Posted by SoCalLandscapeMgmt View Post
Cut it, thread it and use SCH 80 unions and tee to make your connection
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It's not wise at all to thread a metal male fitting into a plastic female
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Old 08-06-2011, 01:14 AM
SoCalLandscapeMgmt SoCalLandscapeMgmt is offline
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Quote:
Originally Posted by mitchgo View Post
It's not wise at all to thread a metal male fitting into a plastic female
Done it many times on a 2" galv main with about 85psi. The key is to use SCH 80 and to not over tighten the PVC fittings. Never had a failure yet. I've got repairs like this that have been in the ground for 15 years with no problem!
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