OK, this morning I checked the Pink stuff I left sitting on the porch last night. There was ice solid in spots where there must have been some condensation formed by it sitting there before it got real cold. the pink stuff was so thick it would hardly pour out of the jug.
It said on the jug it was protection to -50.
Now I'm thinking after you blow out your lines in the MH I'm sure there has to be some water left some where in the lines.
Now if you noticed in my first post I did not use it in the lines, I just used it in the P-traps. So I guess I will keep doing the same thing I've been doing for about 15 years. Just blow out the lines drain every thing that I can , put the pink stuff in the traps.
Thanks for all the in put. I have found you are never to old to learn.