First time closer and am just full of questions today.
If you blow out the skimmer lines of water, add anti-freeze, drain pool water well below skimmer opening, and cover(my cover also covers skimmer lid)-Why the need to use the gizmo thing? I don't understand how that much water can get into the skimmer box with everything covered. What am I missing? I did use the gizmos because we had them, just wondering if my logic is correct. Since this is my first time closing, I'm just re-going over everything to make sure I'm covered. At this point, I'm trying to figuring if I need to add more AF to skimmer box outside of gizmo or if my first theory of not that much water getting in is correct.