Folks, if you've recently upgraded or renewed your annual club membership but it's still not active, please reach out to the BOD or a moderator. The PayPal system has a slight bug which it doesn't allow it to activate the account on it's own.
I never measured. I just fill mine up for 175gallon water volume.
When you get it from the group buy's, theres no reason to skimp since the price can't be beat. ;D