Plan A: Complete Closing with Cover & Chemicals.
Lower water level as needed.
Drain water from filtration equipment. Backwash filter and/or hose off elements.
Remove water from underground pipes with compressed air and apply anti-freeze as needed.
Remove and store ladders, rails, and automatic pool cleaner as requested.
Install customer's freeze plugs.
Add winter chemicals: (5lbs Shock, 2 Quarts 60% Algaecide, PLUS 1 Pint Arctic Blue Algaecide)
Install customer's cover.