I was wondering if i could make some sort of charging scale for some small under counters. I was think about doing a charging cylinder that would hold like 2 lbs of liquid, or 6 ounces. they can vary in size and volume. Maybe a peice of 1 3/8 pipe capped off with valves on either end. I have heard of the same thing but it is glass, that can be exspensive. Any ideas? Thanks