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Best way to tap………..

Printed From: Unofficial Allis
Category: Other Topics
Forum Name: Shops, Barns, Varmints, and Trucks
Forum Description: anything you want to talk about except politics
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=206497
Printed Date: 09 Jul 2025 at 6:28pm
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Topic: Best way to tap………..
Posted By: Lars(wi)
Subject: Best way to tap………..
Date Posted: 29 Apr 2025 at 7:05pm
into PEX(3/4”), with cpvc. I don’t have a pex crimper, or any pex tools for that matter. Never worked with pex before. This will be a hot water extension from bathroom supply to laundry room. Or, would I be better off using pex, and getting the crimping tool, and stuff. The pex in the home is the blue(cold) and red(hot) TIA.

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I tried to follow the science, but it was not there. I then followed the money, and that’s where I found the science.



Replies:
Posted By: Pat the Plumber CIL
Date Posted: 29 Apr 2025 at 8:15pm
Shark bite fitting will easily connect the 2 . Be sure and use the plastic insert that comes with the fitting on the pex side . You don't need it on the cpvc side.

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You only need to know 3 things to be a plumber;Crap rolls down hill,Hot is on the left and Don't bite your fingernails

1964 D-17 SIV 3 Pt.WF,1964 D-15 Ser II 3pt.WF ,1960 D-17 SI NF,1956 WD 45 WF.


Posted By: steve(ill)
Date Posted: 29 Apr 2025 at 8:36pm
forget the CPVC... nothing but problems when it get OLD and BRITTLE, or froze... the PEX works great... I have a crimper and go that route.. Have used a couple shark bits and they are easy..

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Like them all, but love the "B"s.


Posted By: steve(ill)
Date Posted: 29 Apr 2025 at 8:41pm


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Like them all, but love the "B"s.


Posted By: thendrix
Date Posted: 30 Apr 2025 at 6:19am
When we had our second well put in at the farm the guy told me he never uses PVC anymore. Everything he does is PEX because of its ease of use

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"Farming is a business that makes a Las Vegas craps table look like a regular paycheck" Ronald Reagan


Posted By: Codger
Date Posted: 30 Apr 2025 at 6:34am
I've not had any problems with CPVC getting brittle with age myself but it's never ran where it can move other than normal thermal expansion in the hot water lines. Replumbed my house complete in 1990 replacing the old galvanized steel piping then and I've had to modify the lineset for new water heater installs four or five times since for new appliances. 
Floor heat in my shop is PEX and about 25 years old without problems I know of, but it's under 8" of concrete so kinda hard to see.....


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That's All Folks!


Posted By: DaveKamp
Date Posted: 01 May 2025 at 1:41am
Get a pex crimper, a ring breaker, some fittings and PEX.

Cut the pex mostly square.  Slip a crimp ring over, stuff a fitting into it, slide the ring over, put the crimpers on, squeeze 'em full-shut, and you're done.

If you make an error, or need to make a change, the ring breaker will allow you to cut off the old fitting, snip off any extra tubing, slip the breaker in over the ring, squeeze, rotate 180, squeeze, and the ring will break off, freeing the fitting for re-use.


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Ten Amendments, Ten Commandments, and one Golden Rule solve most every problem. Citrus hand-cleaner with Pumice does the rest.


Posted By: tadams(OH)
Date Posted: 01 May 2025 at 7:52am
I found out that when you use crimp fitting with pex you are reducing the pipe size beacause they fit inside, gater fitting don't do that



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