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Old 04-24-2013, 02:43 PM   #1
New Member
1989 32' Excella
Anthony , New Mexico
Join Date: Oct 2009
Posts: 1
Repairing grey plastic water lines

I am replacing a toilet in a '89 excella 1000 and will have to modify/reroute the water line. Are there any connecting fittings (unions and/or 90 degree) I can use which don't require a crimping tool? The water line is original grey plastic. I have searched the forums to no avail. Also how can I determine the size of the line? Thanks.
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Old 04-24-2013, 02:55 PM   #2
Rivet Master
1981 31' Excella II
New Market , Alabama
Join Date: Sep 2011
Posts: 6,134
There are probably some shark bite type connectors that will work. You can also do this. Dispite what many have said the polybutylene tubing is not that bad but some of the fittings used by Airstream tend to crack. Here is a little history.


POLYBUTYLENE repair fittings -®

Or this

Polybutylene Tube Fittings - Fittings - Grainger Industrial Supply

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Old 04-24-2013, 03:09 PM   #3
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1986 25' Sovereign
Marietta , Georgia
Join Date: Mar 2013
Posts: 317
We just repaired our old grey lines by using pex tubing and flaire-it fittings...worked great.


that's their site but we bought our flair-its from our local camper store and no tools are needed to install them, hand-tighten+.
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2016 Ram 1500 Crew Cab 5.7 Hemi
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Old 04-24-2013, 03:12 PM   #4
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1974 Argosy 20
2014 20' Flying Cloud
Kooskia , Idaho
Join Date: Jul 2009
Posts: 4,591
Shark Bite (Home Depot and others) and Tiger Bite (Lowe's) will both work well with gray polly pipe.
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