cord management

I have a Dolphin E20 Explorer and I just got this today: Woods E-102 Heavy Duty Cord Storage Wheel, 125-Foot https://www.amazon.com/dp/B000FPDKPM The E20 is for pools "up to 33 feet" and this reel works perfectly. The cord fills the reel all the way up but doesn't overflow on the reel either. I...