>> And then I have them in crates with holes too.
I think that kind of elevation is good for drainage. The jugs will never sit in a puddle. And the plastic of the jug makes good contact with the plastic of the crate, so water should form a continuous capillary layer right down to what the crate sits on.
If you want to go crazy, put a little cotton cloth as a wick under each jug ... but better just not to worry.
Al (Tapla) suggested once that you can check a large container for excess perched water by tilting it. If much water drains out the low corner, maybe it was a little waterlogged.
Or hold the jug up around eye level, then move it rapidly down to waist level and stop it as fast as possible. If the inertia of the water makes any "keep going" and much trickles out the bottom, maybe there was some excess in the jug.
Of course, I'm suggesting these mainly to amuse your husband!
But you could tell him it's an inertial damping maneuver, and if he's a Star Trek fan, you might blow his mind.
Or de-dampening.
