Originally Posted by Sid
Does anyone else relieve the backpressure in the lines after running the pump? I do not see it listed in any of the threads but one of my final steps is to remove the screen in the city water connection and then push in on the valve located underneath. This will "burp" the lines, allowing some water and then AF to spurt out. Replace the screen and your good to go!
I do. Once all the lines are completely full (many of the lines on my trailer are clear so I can see they are fully loaded with pink Anti freeze) I turn the water pump off and then open up the taps one at a time and some of the anti freeze will normally come out of the tap - that will also let off the pressure in the lines. Can actually see the amount of pink in the lines drop down. My theory is as long as the only liquid in the lines is anti freeze they don't need to be completely full of it.
I do as a previous poster mention make sure ALL my holding tanks are drained prior to winterizing. To completely drain the fresh water tank I need to lower the trailers tongue down as the tanks drain is located at the bottom of the tank at the forward end of the tank. If the trailer is sitting level the fresh water tank does not completely drain. If I were to add anti freeze to the fresh water tank without making sure it was completely empty first the anti freeze going through the trailer lines would be diluted.
I also do not leave an anti freeze in the top portion of the toilet over the winter. I actually don't leave any anti freeze in the toilet at all. I drain the tank right out once I have filled the water line leading to the toilet with anti freeze. I actually don't leave any water in the toilet anytime the trailer is in storage. Never had a problem as a result of that practise.