Multi Port Tee vs regular Tee

[Tommy Dee]

Hey,
I’m replacing the copper water pipes with pex in my bathroom. The current set up was 3/4 in copper pipe from the water main and split into 1/2 in copper to the fixtures. Any suggestion on putting in a multi port tee or manifold type system to tee off the 1/2 pex from the 3/4 in copper. It will be serving a bath, shower, WC and Lav.

Thanks

 

[Tuttles Revenge]

A multiport tee/manifold is perfect for that scenario. It saves a lot of time and saves on number of joints and fittings.

 

[Sponsor]

 

[Tommy Dee]

A multiport tee/manifold is perfect for that scenario. It saves a lot of time and saves on number of joints and fittings.

Right ok awesome thanks.
I was leaning towards doing it, but a plumber friend said it was unnecessary.
But I feel like it’s worth it

 

[Reach4]

Think about WH transit time. By having 1/2 inch pex to the bathroom hot, water will arrive quicker. 3/4 pex to the bathroom cold would be better.

I expect replacing copper with pex was not a motivating factor, but was a side effect.

 

[Tommy Dee]

Think about WH transit time. By having 1/2 inch pex to the bathroom hot, water will arrive quicker. 3/4 pex to the bathroom cold would be better.

I expect replacing copper with pex was not a motivating factor, but was a side effect.

So your saying to use 1/2 pex for hot and 3/4 for cold? Can you explain why?
And ya, the replacement was a side effect
Thanks

 

[Reach4]

So your saying to use 1/2 pex for hot and 3/4 for cold? Can you explain why?

If supplying a bathroom, cold has 3 loads and you don't worry so much about how long bathroom cold is in transit. Hot has 2 loads will arrive quicker in smaller pipe.

If using manifolds, you could run 1/2 from the manifold to the tub hot and cold. 1/2 or 3/8 to the lavatory hot and cold. 1/2 or 3/8 to the toilet.

 

[Tommy Dee]

If supplying a bathroom, cold has 3 loads and you don't worry so much about how long bathroom cold is in transit. Hot has 2 loads will arrive quicker in smaller pipe.

If using manifolds, you could run 1/2 from the manifold to the tub hot and cold. 1/2 or 3/8 to the lavatory hot and cold. 1/2 or 3/8 to the toilet.

The bathroom has a shower, a tub, a lav and a WC. So I should run the cold runs from the 3/4 in copper using a 3/4 in manifold and the hot runs from the 3/4 copper to a 1/2 in manifold (multi port tee)?