At 04:28 PM 8/14/2010 Saturday, neil n wrote:
>- I've seen conflicting answers on this: is it absolutely necessary to
>have a stove burner on (or both?) when testing pressure? If so, why?

You have to be venting/consuming low-pressure gas in some fashion,
otherwise the pressure in the line won't go down when you adjust
down.  But you can't leave the output wide open either, 'cause the
pressure will go to zero.

>- Does the main valve need to be closed, and inlet end of manometer
>hose disconnected and cleared of pressure each time an adjustment is
>made? Or does hose remain connected, and valve remain open while
>diaphram is being adjusted? (i.e. one would see pressure rise or fall
>while all connected and diaphram adjusted)

See above.

>- Though the stove still lit, my LP tank was almost empty at time of
>testing. Would this have affected the accuracy of the manometer
>reading?

Should not.

d