What good are low point drains?
What good are low point drains on a trailer that is supposed to be good for 0 degrees? My drains are solid, slightly flexible, plastic pipe. It seems like they’re going to freeze and bust at anythin...
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Wow, thanks for the replies, thoughts, and experiences. I posted this to get thoughts on aspects I hadn't thought of. It might have helped if I had specified that my 3 drains have caps at the bottom and no valves in the heated section. It is interesting to me that the manufacturer went to the effort to install inside valves for black and gray tanks, but got lazy with the drains. I have thought about installing my own valves in the heated space, and appreciate that idea. My one chunk of PEX is the fresh tank drain with a cap at the bottom (full of water when I am camping). There is little hot air around it although I do have a tank heater on the tank. I was wondering from other's experience if this one drain will probably handle 20 degree weather without busting (no plans to camp at 0 degree weather.) The low point drains are my bigger concern, because if they bust while camping at 20 degrees, I'm out of water, and have to do an unplanned repair in 20 degree weather. They are not PEX, are capped at the end, and lay full of water when camping.
I understand, and had thought of, the fact that low point drains help those who do not use antifreeze get a better clean out. When winterizing, I use my air compressor to blow out, minimizing dilution of the antifreeze, then run antifreeze though every opening and drain trap. In the spring I flush out with a strong flow of water and then Clorox/water mix. We have not experienced residual taste. The point about freezing valves was a good one. Somethings else to think about are black tank flush, washer connections, and outside showers that may lay full of water to freeze.
I understand, and had thought of, the fact that low point drains help those who do not use antifreeze get a better clean out. When winterizing, I use my air compressor to blow out, minimizing dilution of the antifreeze, then run antifreeze though every opening and drain trap. In the spring I flush out with a strong flow of water and then Clorox/water mix. We have not experienced residual taste. The point about freezing valves was a good one. Somethings else to think about are black tank flush, washer connections, and outside showers that may lay full of water to freeze.
