[BillA]

no, the flow rises vertically and 'supports' a slug
5 % ?
that is a sad joke
the slug bobbles around like Janet Reno's hand

and look at the divisons
do I see a tick at each 0.5 gal ?
if so,
that is what can BE READ, interpolations are just to amuse

my old rad data was run with a spring loaded "variable area" flow meter with a magnetic sensor giving 0 - 5 VDC output
- I worked my butt off 'calibrating' it, then later had to revise all the data

I still have a couple of them, $20 ea + shipping

N.B. a magnetic flowmeter at $300 is a MUCH better deal

EDIT: gd qwerty keyboard