Here is today's experiment. It was highly scientific (not really, but he enjoyed it.)
We were trying to decide which diaper is best for Sister, and compared four kinds of diapers for absorbency.
He submerged each diaper (above is a disposable size 2 Luvs) then held it up till it stopped dripping.
Then we calculated how much water was missing from the bowl by refilling it back to the two liter mark. (I had to help with the math on this part.)
Below he's submerging a BumGenius all-in-one with an overnight insert.
Writing his findings.
Submerging a prefold (without a cover)
Holding it until it stopped dripping.
The disposable diaper held 275 mL of water.
The BumGenius with one insert held 400 mL of water.
The prefold held 450 mL of water.
The BumGenius with the overnight insert held 675 mL of water.
We also talked about the reasons for using disposable vs washable diapers.