Originally Posted By: IzzyJG99
I filled it up once and found it impossible to get all the water out of the bladder and it turned moldy quick. Waste of money.

Oh...that's a real turn-off for a product like this. Basically turns it into more of a disposable item.

What about it made it impossible to empty completely? Maybe the position of the spigot in relation to the "bottom" edge of the bladder?