I'm hoping to winterize my in-ground vinyl pool for the first time on my own. I live near Philadelphia so we get below-freezing winters. I've watched the pool guy do it 2 times but my memory is a bit fuzzy on sequence of events. I've a big air compressor available to blow out the lines, I've a Gizmo for the skimmer line, a "tupperware" lid cover for the skimmer opening in the pool side wall, and screw in plugs for the two discharge ports.
My pool has two discharge ports and 1 main drain (one line with two drains).
1. He never had me pump pool down below the waterline of the skimmer; other websites seem to recommend this?
2. I was planning on getting an air valve to screw into the pump drain port (1/2" thread) to blow out the lines. Good idea? He used a large, rubber "cork" that he had his compressor hose attached to and used that inserted it into the piping (disconnected the PVC lines at unions)
3. If ok to use the pump's drain port, in what order do I blow out first, second, and third: drains, discharge lines, skimmer?
4. Another site recommended using some RV waterline antifreeze in the skimmer line; my guy never did, just blew it out, sucked water out of skimmer itself, inserted Gizmo, and tupperware lid.
5. How many psi should I set the compressor for? I don't want to blow out a line!
I appreciate the help.