Low point pressurized drain petcocks

[eggemarcus]

Had some freeze damage last year,but took my camper in for repair at the dealership. Everything tested and help pressure. So...I was in the process of winterizing my 2013 flying cloud and upon draining the low point ball valves. Both snapped off. It's clear that they froze and all it took was turning the gate valves open to finally shear off. My question is what is the other end of the nipple connected to. I got an easy out thinking I could just back out the brass nipple but, what ever it is connected to is turning. Is this something that anyone knows how to do. As it seemed like an easy fix but it goes through the water tank. Any help is greatly taken.
Thanks.
Marcus.

[dznf0g]

Is there a cutout in the floor directly above the valves? Maybe a pic would help. Mine can be accessed NEXT TO the tank through a removable closet floor....albeit not easily. The low point drains do not go to the tank, but rather hot and cold water lines, or terminations next to the tank.

I don't know how your floorplan is laid out, but scrounge around inside the unit for floor access.

[eggemarcus]

[eggemarcus]

These I am assuming are the hot and cold drain valve/low points?

[dznf0g]

It appears so. That is a plastic cover for your fresh tank? Not the tank itself, I assume....it is different than mine. Although the drains appear more inboard than mine, there has to be room between the tank and the cover for water lines and their drains, obviously. What's above that area inside the coach?

[dznf0g]

OR is that just a protective sheet covering the bottom of the tank?

[eggemarcus]

I believe that is the tank, but I guess it could be a cover. I can see part of the water lines headed straight down in a very tight location inside below the pump. I guess I need to dig around some more. But I can barely get one hand in that area. If that is a tank cover and I could remove it. I think I could grab the part that is spinning and then get the leverage to remove the nipple with an easy out.
Thanks.