I’m in the process of removing old/old(copper with pinhole leaks) supply pipe with PEX. I’ve installed a ZURN qickport.
Before I re-plumb the entire house, I started with the kitchen and hooked the kitchen sink up with 3/8 PEX.
It works but just doesn’t flow that strong. Am I doing something wrong or is typical of 3/8. Before I rip it out and replace with 1/2″, I figure I’d ask.
The supply uses 3/4″ PEX which is the same size (probably a bit smaller) than the original copper was.
Any help would be great.
Thanks,
JNF
Replies
The vast majority of people use 1/2". Even if allowed by code, I wouldn't allow our plumber to use 3/8" on anything other than a toilet or ice maker.
Beer was created so carpenters wouldn't rule the world.
Thanks Don. JNF
I agree, toilets, and maybe vanities, but kitchen sink benifits from a higher volume of water.
with pex it is in most cases approved to use a smaller size because it usually flows better with fewer fittings... water like air does not like to make turns...
I've never had a problem with 3/8 supply lines (from cut off under sink to the faucet) (less than 30 inches...) but i think you need the volume of the 1/2" up to that point...
BUT i would pull the airiator (sp) off the end of the sink faucet ad make sure there is no trash block'n some flow... just in case trash from the swap-out got in there
good luck
p
Trash can catch in the fixture, too - better check flow upstream before you rip everything out.
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