Thread Tools Search this Thread Display Modes
Old 01-24-2022, 02:25 PM   #1
Senior Member
RickyD's Avatar
City: Long Beach, CA
Vessel Name: Aquarius
Vessel Model: Californian 55 CPMY
Join Date: May 2018
Posts: 415
Hot water re-pipe with PEX a problem

I have experienced leaks in my 30 year old hot water pipes. After the last one I decided to replace the whole system. Wow, and insane job. Three times we were faced with seemingly impossible problems. Twice we got past them. I still don't have arms long enough to screw on the new fittings to my washing machine and I can't figure out how to get it out, but that I can save for later. After finally hooking up all of the 1/2" pex lines and brass shark bite fittings, several of the lines to the sinks are leaking. Some of these are almost impossible to reach with two hands or tools. We were thankful to get them connected and freaked out now that they leak. In a couple days we are going to try again. Does anyone have any tips on using these shark bite fittings and achieving leak free performance?
Aquarius 1991 Californian 55 CPMY Long Beach CA
RickyD is offline   Reply With Quote
Old 01-24-2022, 03:23 PM   #2
psneeld's Avatar
City: Ft Pierce
Vessel Name: Sold
Vessel Model: Was an Albin 40
Join Date: Oct 2011
Posts: 25,494
Feed extra pipe to where they need to be, then pull back and make that connection where it can be reached.

Attach flexible hoses from pex connections to the appliances if it makes it easier.
psneeld is offline   Reply With Quote
Old 01-24-2022, 03:23 PM   #3
Senior Member
mike66's Avatar
City: Warwick, RI
Vessel Name: Susan Helena
Vessel Model: Albin40
Join Date: Oct 2014
Posts: 450
Did you check out the videos on the shark bite site?
mike66 is offline   Reply With Quote
Old 01-24-2022, 03:40 PM   #4
TF Site Team
Bacchus's Avatar
City: Seneca Lake NY
Vessel Name: Bacchus
Vessel Model: MS 34 HT Trawler
Join Date: Nov 2014
Posts: 6,472
With many of the PEX fittings a perfectly clean 90* cut is essential and a PEX cutting tool is the best way. I have used the crimp fittings (both rings and bands) when doing an extensive repair / replace and the SharkBite type for simple repairs. I have only had one crimp fitting leak when testing and that was one I assembled to dry fit and forgot to crimp it later.
2008 MS 34 HT Trawler
Bacchus is offline   Reply With Quote
Old 01-24-2022, 08:58 PM   #5
Senior Member
sailormike's Avatar
City: Wrightsville Beach, North Carolina
Vessel Name: Miss Dot Dee
Vessel Model: 1980 29' Prairie Trawler
Join Date: Jul 2010
Posts: 199
I have re-plumbed many boats and rvs and made many repairs to pex I have used rings pinch clamps and shark grips. I have never had one leak as well and yes good cuts matter. the only thing I can think of is that when you pushed the pipe into the shark grip you didn't get it all the way in.
Capt. Michael S. Hamby Jr.
"Miss Dot Dee"
1980 Prairie 29 Hull #50
sailormike is offline   Reply With Quote
Old 01-25-2022, 12:45 PM   #6
C lectric's Avatar
City: Gibsons, B.C., Canada
Vessel Name: Island Pride
Vessel Model: Palmer 32'
Join Date: Oct 2007
Posts: 3,903
Done at home but my last plumbing repair involved removing the entire tap/faucet set, attaching short hoses and then reinstalling the faucet set back into place. I could work the faucet set securing nuts but not the hose ftgs. in the very tight space. Having the faucet set on the counter made things far easier.

Then the final connection was done down where I could work the parts. Needed some extra bits and pieces and made a few extra trips to the hardware store but no leaks since.

And yes I have one of the tubing cutters. Going to put one on the boat also for the prices they are.
C lectric is offline   Reply With Quote
Old 01-25-2022, 04:31 PM   #7
Senior Member
jimdavi's Avatar
City: San Francisco
Vessel Name: Couple’s Retreat
Vessel Model: 2019 North Pacific 45
Join Date: Aug 2014
Posts: 372
I thought shark bite and PEX are different sizes.
jimdavi is online now   Reply With Quote
Old 01-25-2022, 05:50 PM   #8
TF Site Team
Comodave's Avatar
City: Au Gres, MI
Vessel Name: Black Dog
Vessel Model: Formula 41PC
Join Date: Jul 2015
Posts: 15,821
I replumbed a previous boat with SeaTek materials. The fittings are similar to Sharkbite. The only one that ever leaked was because I didnít seat the pipe completely into the fitting. And yes the cut is very important.
Boat Nut:
If you are one there is no explanation necessary.
If you arenít one, there is no explanation possible.
Comodave is online now   Reply With Quote
Old 01-25-2022, 07:55 PM   #9
Datenight's Avatar
City: Groton, CT
Vessel Name: Datenight
Vessel Model: North Pacific 45
Join Date: Jan 2008
Posts: 939
Originally Posted by jimdavi View Post
I thought shark bite and PEX are different sizes.

North Pacific uses the Wirsbo expansion system. Sharkbite works with that tubing.

North Pacific 45
Datenight is offline   Reply With Quote
Old 01-26-2022, 12:19 AM   #10
Senior Member
City: Anacortes
Join Date: Mar 2016
Posts: 459
A friend who runs the plumbing dept at the local Ace Hdwe told me that with Sharkbite you have to make sure your tube is cut square and that you need to chamfer the edges of the tube
sean9c is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

» Trawler Port Captains
Port Captains are TF volunteers who can serve as local guides or assist with local arrangements and information. Search below to locate Port Captains near your destination. To learn more about this program read here: TF Port Captain Program

All times are GMT -5. The time now is 01:45 AM.

Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2022, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012