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Vertical Cooling Legs for Drip Traps.....Possible?
I have a 2 pipe system down fed from an attic main.
I believe the branches come off the top of a 3 to 5" main.
The drop branches go down 2 floors, so there is about 20' of 1 1/2-1 1/4" vertical pipe.
There are 28 drip traps alone (1/2" WW 702's which all will get new B&J 1972's).
Every where I read about the importance of the 5' cooling for these traps to have when used for drips.
Most are connected directly on the tee above the mud leg for each drop, some may have 1' or so of horizontal piping.
This is a 1933 install. I am assuming the "Dead Men" knew what they were doing.
My best guess is that they relied upon the 10 to 20" of vertical 1 1/4" pipe below the rad valve connection to cool the condensate. Also the 4-6" mud leg would be full of water to dissipate some heat?
All mud legs were completely full of mostly solid sediment up to the branch tee for the trap, (4' cheaters needed).
These are mostly installed in classrooms.
Adding the horizontal cooling leg is not very feasible, nor is F&T installation.
Any pitfalls to watch out for?