Wet stowage wasn’t shells immersed in water or other liquids. It was thin walled tanks between the ammo on the racks so if the compartment got hit, water would hopefully spill out of the reservoir where it was hit and douse any sparks or fire before the ammo could cook off. It was effective at the time, but advancements in the charges used mean that just a few decades later water really wouldn’t be able to deal with a fire and the heat in time, so modern NATO tanks use blowout panels instead now to channel any exolision away from the crew compartment.
Wet stowage wasn’t shells immersed in water or other liquids. It was thin walled tanks between the ammo on the racks so if the compartment got hit, water would hopefully spill out of the reservoir where it was hit and douse any sparks or fire before the ammo could cook off. It was effective at the time, but advancements in the charges used mean that just a few decades later water really wouldn’t be able to deal with a fire and the heat in time, so modern NATO tanks use blowout panels instead now to channel any exolision away from the crew compartment.