Bumpyroad wrote:
Harvey51 wrote:
What prevents water from lying in the lower half of a pipe while the air goes by in the top half? .
nothing
bumpy
x2. Pink stuff is the best few bucks and little extra effort for peace of mind. Some don't use it, just blow it out and it works for them. I don't want to have to wonder when the temps fall below 0 whether I got all the water out by blowing them out. Running pink stuff is good insurance and costs next to nothing. And if you are really frugal, when you de-winterize you can capture most of it from a faucet into the original container when you turn the pump back on.