Originally Posted by kanyonkitty
I'm just taking a wild guess, but I think there is a "P" trap under the shower. The same that you see under your sinks. The "P" trap keeps tank odors from coming into your coach from the holding tanks. If I'm wrong, I'll be corrected by someone shortly,
Kitty, you are 100% correct. The water visible when looking down the shower drain is the small amount that sits in the P trap to prevent odors from backing up into the trailer from the gray water tank. The bathroom sink and kitchen sink also have P traps, but the water is harder to see, especially in the kitchen.
Indianasunny, if you really need to get the water out of the P traps, take a shop-vac, set the hose on exhaust instead of suction, stick the tube into the drain, and blow the water out. I do that in the fall when winterizing before I do anything with the pink antifreeze.
'12 F250 4x4 Super Duty PowerStroke 6.7 diesel
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