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I understand the following may be a simple statements, but are and so true1. a pocket of air the size of a grain of rice [in a fluid system] will cause pressure decay2. this decay continues until that pocket of air is adsorbed back into the volume of fluid as entrained gas [pressure then stabilizes]3. pressure decay or bypass is more difficult to resolve at 1 Bar, than 100 BarDerek [after work ..... in gun mounts, missile launchers, submarines, iron & steel mills and a little steam]
Hi Chris , Great progress on the boiler! I see lots of vaporized dihydrogen monoxide in your future!
I just love a good solder job with penetration....... looking great Dog hopefully no leaks...... Don
Chris--Other boilers I have seen have clusters of small diameter tubes clustered together with soldered end plates. Does your boiler not have that?--Brian