When I first filled mine, I put stabilizer in 2 panty hoses and hung into pool away from the side/bottom, ie. from stair rail or floating device. I have a liner AG. That way the stabilizer starts getting in the water without having to wait until water level is all the way to skimmer (if you want to add it in the skimmer). My CYA level was up quicker and needed alot less Cl during the first 2 weeks of start up.