Running PEX In Mobile Home - Plumbing - DIY Home Improvement | DIYChatroom


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Plumbing

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 07-01-2013, 12:06 PM   #1
Electrical Enthusiast
 
Join Date: Jan 2013
Posts: 725
Rewards Points: 500
Default

Running PEX in mobile home


Let me preface this by saying that I have little experience with plumbing.I am in the process of installing a new water heater in a mobile home. (the old one rusted out). All of the plumbing is polybutilene (gray hoses of death). We are on a well so I feel that PEX may be the best choice. I know they make sharkbite connectors that will go from PEX to poly (I am not prepared to replumb the entire trailer right now). Here is what I want to do:
-Install a shutoff where the polybutilene comes out of the ground. (The one at the well won't shut completely off)
-Run PEX from there into the trailer and into the water heater (can you connect PEX directly to the heater? There is some sort of flexible copper fitting there now)
-Run PEX from the water heater to a point where I can transition back to the polybutilene.

Does this make sense/sound reasonable?

Advertisement

Kyle_in_rure is offline   Reply With Quote
Old 07-01-2013, 01:19 PM   #2
Plumber/Contractor
 
TheEplumber's Avatar
 
Join Date: Jul 2010
Location: North Idaho
Posts: 7,257
Rewards Points: 2,630
Default

Running PEX in mobile home


Yes it sounds reasonable. Watch for any existing tees that branch to other fixtures on the cold side before the water heater.

My code does not allow me to run pex to the heater- I must stay 18" of developed length away- sounds like yours is piped that way to, so I'd stick with that. Don't forget a shut off valve at the cw to the heater.

Advertisement

__________________
When posting in forums, letting us know your location will help others give better feedback/advice/solutions to your questions
TheEplumber is online now   Reply With Quote
The Following User Says Thank You to TheEplumber For This Useful Post:
Kyle_in_rure (07-01-2013)
Old 07-01-2013, 01:26 PM   #3
Member
 
Join Date: Nov 2011
Location: Hartfield VA
Posts: 27,747
Rewards Points: 610
Default

Running PEX in mobile home


I would also go with at least 3/4 to the heater and any main runs.
You'll get about twice the flow then a 1/2 line.
__________________
When posting in forums, letting us know your location will help others give better feedback/advice/solutions to your questions
joecaption is offline   Reply With Quote
Old 07-01-2013, 01:29 PM   #4
Electrical Enthusiast
 
Join Date: Jan 2013
Posts: 725
Rewards Points: 500
Default

Running PEX in mobile home


Hi Eplumber,


I think the current lines are 3/4", so I should be good to go there. How exactly should I make the transition to the water heater, since I can't run pex straight to it?
Also, do I need to buy a special shutoff since ill be using pex?
Kyle_in_rure is offline   Reply With Quote
Old 07-01-2013, 01:59 PM   #5
Member
 
Join Date: Nov 2011
Location: Hartfield VA
Posts: 27,747
Rewards Points: 610
Default

Running PEX in mobile home


They make Pex to Pex, or Shark Bite to Shark Bite shut offs.
The cheapest place I've found the fittings, hose and shut offs is Pex Supply.
The shut offs are about 1/2 the price of the box store.
Most often I use a dielectric nipple on the heater, a copper flex line then the Pex.
__________________
When posting in forums, letting us know your location will help others give better feedback/advice/solutions to your questions
joecaption is offline   Reply With Quote
The Following User Says Thank You to joecaption For This Useful Post:
Kyle_in_rure (07-01-2013)
Old 07-01-2013, 04:34 PM   #6
Electrical Enthusiast
 
Join Date: Jan 2013
Posts: 725
Rewards Points: 500
Default

Running PEX in mobile home


Well that certainly makes it easier thanks for the help.

This polybutylene is really a pain. We have a leak at nearly every fixture.
Kyle_in_rure is offline   Reply With Quote
Old 07-01-2013, 04:51 PM   #7
Member
 
Join Date: Nov 2011
Location: Hartfield VA
Posts: 27,747
Rewards Points: 610
Default

Running PEX in mobile home


Replacing all of it at one time could be done in a day by a pro.
There's going to have to be some wall damage done to get this done but you can not make an omelet without breaking some eggs.
__________________
When posting in forums, letting us know your location will help others give better feedback/advice/solutions to your questions
joecaption is offline   Reply With Quote
Old 07-01-2013, 05:58 PM   #8
Member
 
Join Date: Mar 2013
Location: Ohio
Posts: 2,572
Rewards Points: 1,688
Default

Running PEX in mobile home


Is your hot water tank gas or electric? If it was gas did it have for mobile home use only on it? The reason I ask is mobile home gas HWT usually draw air from beneath the home and are a special manufacture for that. Using a home depot house tank that is gas may cause the occupants of the home to asphyxiate.
Ghostmaker is offline   Reply With Quote
Old 07-01-2013, 06:01 PM   #9
Member
 
Join Date: Aug 2009
Location: KS
Posts: 56
Rewards Points: 75
Default

Running PEX in mobile home


Quote:
Originally Posted by TheEplumber View Post
My code does not allow me to run pex to the heater- I must stay 18" of developed length away- sounds like yours is piped that way to, so I'd stick with that. Don't forget a shut off valve at the cw to the heater.
You can use a Flexible Water Heater Connector to meet code. Some even have the shut off valve on one side.
HitLines is offline   Reply With Quote
Old 07-01-2013, 09:45 PM   #10
Electrical Enthusiast
 
Join Date: Jan 2013
Posts: 725
Rewards Points: 500
Default

Running PEX in mobile home


I plan on doing it all at some point in the future. This is on our farm, in an extremely rural area, and my main interest is having our running water back for the time being. We've had to keep the well completely off because the shutoff didn't work.

It is an electric 30 gallon Rheem water heater. I should have mentioned that in the OP. naturally there was no drip pan installed so it took the subfloor with it.

Those flexible lines are an interesting idea. Although I had a contractor tell me that the similar flexible lines used for toilets are prone to failure. Is this true?

Thanks for the help guys.
Kyle_in_rure is offline   Reply With Quote
Old 07-02-2013, 12:57 PM   #11
Lord of Slums
 
Join Date: Feb 2013
Location: Detroit Mi
Posts: 803
Rewards Points: 628
Default

Running PEX in mobile home


Yes, those flexible toilet lines are a real problem. Actually, I will never use any sort of flex line except behind an oven. My plumber friend told me a recall is under way for those toilet lines, but I am not sure. I had a house so destroyed by a water leak I just walked away. Those di electric nipples are a whole other discussion. They sell kits at the big box to install water heater, I think they are like 30 bucks. You will not be needing the gas line, so not sure.
mj12 is offline   Reply With Quote
The Following User Says Thank You to mj12 For This Useful Post:
Kyle_in_rure (07-02-2013)
Old 07-02-2013, 02:34 PM   #12
Member
 
Join Date: Nov 2011
Location: Hartfield VA
Posts: 27,747
Rewards Points: 610
Default

Running PEX in mobile home


I've never once had a flex line leak and I've installed hundreds of them.
Only way I've seen one leak is when someone over tightens it. It only needs to be snugged.
__________________
When posting in forums, letting us know your location will help others give better feedback/advice/solutions to your questions
joecaption is offline   Reply With Quote
The Following User Says Thank You to joecaption For This Useful Post:
Kyle_in_rure (07-02-2013)
Old 07-02-2013, 04:09 PM   #13
Electrical Enthusiast
 
Join Date: Jan 2013
Posts: 725
Rewards Points: 500
Default

Running PEX in mobile home


Thanks for the info. Once I get started I may come back with more questions
Kyle_in_rure is offline   Reply With Quote
Old 07-02-2013, 09:53 PM   #14
Lord of Slums
 
Join Date: Feb 2013
Location: Detroit Mi
Posts: 803
Rewards Points: 628
Default

Running PEX in mobile home


Here are the facts about those braided lines. As I was saying they are bad news and here is the class action lawsuit to prove what I was telling everyone. http://www.classaction.org/fluidmast...ply-lines.html Not to mention, a flex line on a toilet does not look professional.
mj12 is offline   Reply With Quote
Old 07-02-2013, 09:57 PM   #15
Electrical Enthusiast
 
Join Date: Jan 2013
Posts: 725
Rewards Points: 500
Default

Running PEX in mobile home


I may look into using a copper flex line instead.

Advertisement

Kyle_in_rure is offline   Reply With Quote
Reply


Thread Tools
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Need advice on remodeling/renovating a prefab (mobile) home countrylifemom Remodeling 50 08-09-2014 07:56 AM
mobile home half electric outlets not working...please baby327nd Electrical 11 02-07-2013 11:51 PM
mobile home renovations dbales General DIY Discussions 3 02-05-2013 07:38 PM
Replacing end walls in mobile home. rrolleston Building & Construction 8 02-02-2013 04:19 PM
mobile home deck roof attaching wyomingguy Carpentry 3 08-28-2011 06:07 PM




Top of Page | View New Posts