My pool has been empty for about 16 months did some repair on the decorative rocks and painted them. I found out that the main drain covers should be changed every 10 years and mine had some cracks so got some replacements. I also replaced the halogen lights with LED lights with longer cable (thats another story). I have a salt system and also starting with new filter cartrages. Is there anything else I should do before filling it up? I have belonged to this form for a while now and love the "Pool Math" app it makes it so easy to keep it looking good.