Faderus
New Member
Hi all,
I am starting a plumbing cleanup/pex replacement in my 1960 raised ranch which was triggered by a hole in my tile tub surround. I ordered an Uponor expansion tool, and and was trying to decide what sizes/lengths of pex and fittings I would need.
A couple of years ago I had a natural gas Navien Combi unit installed to provide hot water and baseboard heat, that acts as a supplement to my high efficiency heatpump. I live in NY.
When I was chasing pipes to see what sizes went where I noticed that the cold water feed to the Navien is mostly 3/4" pex but runs through a section of 1/2" copper and the rest is a tangle of pipes from 60 years of equipment replacements which I intend to greatly simplify and cleanup with the pex. The only functional complaint I have with this system as it works right now is that when the bath filler is opened up wide the hot water temp drops. It's an easy work around to throttle it back a bit, but could this section of 1/2" be the cause?
As an aside, for a standard 1 bathroom raised ranch with aall the pipes in a single wall would a manifold (3/4" in, 1/2" out) or 3/4" trunk and 1/2" branch be recommended?
Is there any benefit to running 3/4" to the shower/bath valve?
Based on the recommendation above, how much 1/2" should I order? would 100' each red and blue 1/2" be sufficient, or should I just buy 300' of white?
Is there any place to order short lengths of 3/4" uponor pex?
Thanks for any help you can offer.
I am starting a plumbing cleanup/pex replacement in my 1960 raised ranch which was triggered by a hole in my tile tub surround. I ordered an Uponor expansion tool, and and was trying to decide what sizes/lengths of pex and fittings I would need.
A couple of years ago I had a natural gas Navien Combi unit installed to provide hot water and baseboard heat, that acts as a supplement to my high efficiency heatpump. I live in NY.
When I was chasing pipes to see what sizes went where I noticed that the cold water feed to the Navien is mostly 3/4" pex but runs through a section of 1/2" copper and the rest is a tangle of pipes from 60 years of equipment replacements which I intend to greatly simplify and cleanup with the pex. The only functional complaint I have with this system as it works right now is that when the bath filler is opened up wide the hot water temp drops. It's an easy work around to throttle it back a bit, but could this section of 1/2" be the cause?
As an aside, for a standard 1 bathroom raised ranch with aall the pipes in a single wall would a manifold (3/4" in, 1/2" out) or 3/4" trunk and 1/2" branch be recommended?
Is there any benefit to running 3/4" to the shower/bath valve?
Based on the recommendation above, how much 1/2" should I order? would 100' each red and blue 1/2" be sufficient, or should I just buy 300' of white?
Is there any place to order short lengths of 3/4" uponor pex?
Thanks for any help you can offer.