Welcome! Here are the website rules, as well as some tips for using this forum.
If you've found help here, check back in to let us know how everything worked out.
It's a great way to thank those who helped you.
I am going to be re-piping a finished basement do to a slab leak. Its a split level house with baseboard throughout the zone except for one convector in the entryway foyer . The zone requires 23,000 btus. Do to the layout of the room a series loop may not work out. I am leaning towards a pex manifold with 5/8 pex al pex or a monoflo system. I was brushing up on diverter tees and began confusing myself. I was thinking about cutting a supply loop of 5/8 pex al pex into the ceiling and down feeding 1/2" risers using monoflo tees to supply 3/4 baseboard. However, I feel that is probably not correct. Should I be using a 3/4 supply loop instead? Would going from 5/8"to 1/2" to 3/4" baseboard be to gradual of a resistance change? Reading Bell and Gossett's 1949 manual added to my confusion when I saw this:
Then I read their current literature which said this:
Why does the 1949 manual say to use two tees and the recent guide says to only use one tee on the return only if the main is 3/4"?
Thanks for your help,