Took me all after noon to make this aux pressure
tank including two trips to the hardware store.. I made it
out of 1 1/2 " pipe parts and two tubeless tire  schrader
valves. Holds pressure fine. One must pressure test
all the parts to make sure none leak or the test of
the cap is inconclusive.

I have two caps to test. A 16 psi by CST
and a 30 psi by C&R racing. I suspect they will all be
different as there is no specification for holding pressure
above the pressure release valve. Nor are they expected
to hold significant pressure in that area.

I'll hook everything up in a few hours and gets some
results.

I have been doing  alot of pressure testing on the radiant heating
system. They make shrader valves with pipe thread on them. Most
plumbing houses have them. Here is what I have been using.
--
Blake C. Lewis



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