I have a small in-ground pool that is roughly 10' x 19' and approximately 6000 gallons. The lines are 1 1/2". After blowing the skimmer line out from the pump with an air compressor set at about 25 PSI, I closed the skimmer valve next to the pump. I then added anti-freeze to the skimmer opening, but was only able to get 1/2 gallon of anti-freeze into the line before it was full. I was expecting to be able to add more and was not particularly looking to fill the skimmer line completely up. Should I consider blowing the line out again from the skimmer end with a blower and then add anti-freeze again? Or will anti-freeze mix with whatever may still be in the line to protect it from freezing. I live in Indianapolis, IN. Also, I blew the bottom drain for a minute or so and could see a lot of air escaping at the deep end of the pool. I then closed the drain valve next to the pool pump while the compressor was still running and then shut the compressor off to protect from overcharging the line. Is that correct and all that is required for this line? Thanks.