I agree, you need one more than I would. Ask your pool builder for different options. There are a few people on this forum that have those automated covers and swear by them. The one we were quoted had a canvas covering -- Not sure how that'd hold up to hot ash. Would it spark? I'd prefer the cleats and rope taunt covering -- I have nightmares of one of our dogs jumping in the pool and getting caught under the canvas and drowning.For sure...gate is going to be put in. We are in the process of teaching our 3 year old how to swim, our 7 and 6 year olds are good to go.
The main thing for a cover is to protect from fire ash.