Re-Plumbing our house: PEX or Copper??

slojmn

Valuable Member
View Badges
Joined
Feb 16, 2009
Messages
1,653
Reaction score
228
Rating - 0%
0   0   0
We are going to be re-plumbing all of the water lines in our house. Does anyone have any suggestions as to what is better for us Pex or Copper tubing?? Does it really matter for the tanks??
 

Aquaph8

Love The Fish
View Badges
Joined
Feb 20, 2011
Messages
8,920
Reaction score
400
Location
Tucson, AZ
Rating - 0%
0   0   0
For the tanks, no it doesn't matter by the time it goes through RODI. I would imagine using all copper would be more pricey these days though. PEX is great stuff.
 

Randy Holmes-Farley

Reef Chemist
View Badges
Joined
Sep 5, 2014
Messages
67,516
Reaction score
63,960
Location
Arlington, Massachusetts, United States
Rating - 0%
0   0   0
I don't know which choice is best, but it may be PEX. I notice a slight flavor in the taps that used PEX (been in 3 years) in our vacation home and not in those that have the old copper. Not sure why.

The metals in the copper pipe and solder would be bad for a reef, but RO/DI will remove them. Not sure whether those metals are a plus or minus for people. Probably some of each, depending on the metal.

I also do not know how long PEX will last. It may outlast most owners, but possibly not the house itself.
 

lacichlids318

New Member
View Badges
Joined
Mar 22, 2015
Messages
8
Reaction score
0
Rating - 0%
0   0   0
Pex is better then copper- you don't get sediment and calcium build up nearly as bad- it also expands with the weather where copper will bust if frozen, pex will expand and retract.

Pex isn't just a new cheaper alternative- it is overall better.
 

AsphaltPays

Valuable Member
View Badges
Joined
Apr 26, 2011
Messages
1,939
Reaction score
18
Location
Schoharie,NY
Rating - 0%
0   0   0
Pex is definitely better in a colder climate Imo I just finished my house in pex had half copper and half pex it was a brutal winter here in New York had a few copper lines break none of the pex did I would go with pex cheaper and super easy to work with
 

thejuggernaut

Active Member
View Badges
Joined
Oct 16, 2010
Messages
376
Reaction score
26
Location
Houston
Rating - 0%
0   0   0
If I were re-doing my house, or building a new one, I would go with PEX. However, I would have copper leads that protrude out of the wall. I hate the look of the plastic CPVC that allot of new houses use for under the sink and behind the toilets. I know it probably doesn't make it function any better, but it is just a visual thing for me. I would also look into hot water return lines and a manifold system. With a hot water return line, you have a small pump that recirculates the hot water through the hot water lines and back to the water heater, so that when you kick on the sink , shower, or dish water, the first bit of water is hot, and you don't have to waste 2 gallons waiting for hot water to flush through the lines. The manifold allows you to do maintenance, construction, or add-on to your plumbing system without having to shut off water to the whole house. Say you get a valve under a sink that starts to leak, or won't shut off all the way. You just turn off the one valve (usually in the garage) to that leg of the plumbing, and the rest of the house continues to function.

All this stuff adds a little money, but if you are going to be there for a long time, it may be worth it.
 

hatfielj

Valuable Member
View Badges
Joined
Apr 8, 2007
Messages
2,321
Reaction score
1,938
Rating - 0%
0   0   0
I'm going to throw in a vote for CPVC. IMO PEX is not a proven, long term technology yet. I have CPVC throughout our house and its great. Easy to work on too. IMO its more reliable than copper or PEX because the pipe all becomes one with the chemical reaction that takes place with PVC glue. As long as its installed correctly there's no chance of any leaks developing.
And for the aesthetic comment about not liking the look of plastic pipes behind sinks, etc, if the finish plumbing is done correctly by someone who knows what they are doing, you can easily make it so there are no plastic pipes exposed and all you see is the nice chrome or brass fittings you chose.
 

thejuggernaut

Active Member
View Badges
Joined
Oct 16, 2010
Messages
376
Reaction score
26
Location
Houston
Rating - 0%
0   0   0
I'm going to throw in a vote for CPVC. IMO PEX is not a proven, long term technology yet. I have CPVC throughout our house and its great. Easy to work on too. IMO its more reliable than copper or PEX because the pipe all becomes one with the chemical reaction that takes place with PVC glue. As long as its installed correctly there's no chance of any leaks developing.
And for the aesthetic comment about not liking the look of plastic pipes behind sinks, etc, if the finish plumbing is done correctly by someone who knows what they are doing, you can easily make it so there are no plastic pipes exposed and all you see is the nice chrome or brass fittings you chose.

True
 

gtbarsi

Well-Known Member
View Badges
Joined
Jun 28, 2013
Messages
586
Reaction score
58
Location
Connecticut United States
Rating - 0%
0   0   0
PEX has my vote, you don't need as many fittings if you plan your runs well, as a result you get better flow through the pipes. The plastic outer acts as insulation keeping hot water hotter, and limiting condensation compared to copper. Finally PEX does not burst as easily as copper or CPVC, so when someone accidentally leaves a garage door open on a night that the temp is -2 with a wind chill of about -22 you do not have an insane mess on your hands (happened to me, really big mess). Additionally I would use it for any forced hot water heating lines, for all of the same reasons, which equate to savings in heating bills.
 

nazzman

Active Member
View Badges
Joined
Aug 31, 2013
Messages
137
Reaction score
16
Location
ma.
Rating - 0%
0   0   0
Pex has been used in Europe since early mid seventies it is more then time tested it will not burst on a freeze up but the tubing will swell out making a weak spot in the line and if it did happen to freeze up again it will more then likely be the same area as the first one pex will also dry out and crack from the outside if it is direct sunlight or strong lighting that is on for long periods of time or next to a heat source CPVC is a great alternative also can be hung and plumbed very easily and way cheaper then copper and alot of times pex just a plumbers opion
 

When to mix up fish meal: When was the last time you tried a different brand of food for your reef?

  • I regularly change the food that I feed to the tank.

    Votes: 42 22.0%
  • I occasionally change the food that I feed to the tank.

    Votes: 65 34.0%
  • I rarely change the food that I feed to the tank.

    Votes: 62 32.5%
  • I never change the food that I feed to the tank.

    Votes: 18 9.4%
  • Other.

    Votes: 4 2.1%
Back
Top