Ask Experts Questions for FREE Help !
Ask
    Davek812's Avatar
    Davek812 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    May 12, 2013, 07:40 PM
    What size pipe should I use for a new basement bathroom? 1/2 or 3/4?
    Im putting a bathroom in my basement. Should I use 1/2 or 3/4 pipe? The shower valve I purchased is 3/4. I have not put in any pipe yet but the bathroom will have a toilet, shower, and sink.
    massplumber2008's Avatar
    massplumber2008 Posts: 12,832, Reputation: 1212
    Senior Plumbing Expert
    		  
    #2

    May 13, 2013, 09:09 AM
    Hi Davek812

    The answer really depends on the specific pipe or tubing you are using and the number of shower heads you plan on installing at the new shower.

    If you are just going to have one shower head then 1/2" to your bathroom should be fine. More than 1 shower head and I would send 3/4" tubing over for best shower experience.

    If you are using PEX tubing you just have to make sure that the fittings are full size 1/2" inside diameter...if not full size ID, then bump up to 3/4" PEX. If you are using copper tubing or CPVC then 1/2" is fine for one shower head bathroom...otherwise, bump it up to 3/4" for multi. Heads.

    Back to you...

    Mark
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #3

    May 13, 2013, 12:36 PM
    Our code mandates that no more then three fixtures be supplied by 1/2". If you have more then three then come in with 3/4" and branch off with a 3/4 by 1/2 by 1/2 tee. Good luck, Tom
    Milo Dolezal's Avatar
    Milo Dolezal Posts: 7,192, Reputation: 523
    Plumbing Expert
    		  
    #4

    May 13, 2013, 02:31 PM
    In my area, each bathroom must be supplied by pipe no smaller than 3/4" main run and 1/2" branches to individual plumbing fixtures. Now if you have elaborate shower design with multiple valves and shower heads - and want good water flow - increase main run to 1" and branches to 3/4". Hope that helps. Back to you. Milo
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

How do I remove a glued PVC pipe from a cast iron pipe drain in my bathroom? [ 2 Answers ]

I have a very old house and have a cast iron pipe as the largest part of my waste drain in the bathroom. I want to place my toilet in a different area of the bathroom. If I want to do this, I have to remove the pvc elbo that is connected into the cast iron pipe. Is there an easy way to remove...

I have a vertical drain pipe coming from basement rather than a horizontal pipe from [ 1 Answers ]

I have a vertical pipe coming up from the basement rather than a horizontal pipe from the wall. How should I connect the sink drainage? Should I place a tee in the vertical pipe and cap the top of the vertical pipe. Or should I place a 90 degree angle into the vertical pipe from the basement and...

What size drain pipe should use for bathroom sink? [ 4 Answers ]

What size drain line for double sink in bathroom and what size vent stack for sink shower toilet

A Vent Pipe for a Basement Bathroom [ 1 Answers ]

First off, I'm talking about a vent pipe not an exaust fan. I'm putting a bathroom in the basement of my ranch home. Since the only bathroom is on the first floor the vent pipe is not currently accessible from the basement. The clear solution seems to be to open up the wall on the first foor...

Trying to figure how to pipe basement bathroom [ 4 Answers ]

When I remodeled my upstairs bathroom I tied into the 3"vent with a 3X2X3 vent tee and stubbed a pipe down next to the sewage riser in the basement for future use. Now that I am ready I just dug out a shovel size hole all the way around the drain riser so that I could see how deep it goes before it...

View more questions Search