I have been searching (google) for years for this cleaner hoping to find a link to the big leaf catcher that sat over the bottom drain to catch larger debris (leaves mainly). I've only found a few mentions of it in old posts, here and there, that go back to late 80's/early 90's.
It was pressure side disc that floated around the pool and had long and short tentacles that sprayed pressurized water out the ends eventually getting most every thing to the main drain catcher. The catcher was about 24-30 inches in diameter, with screened bottom and screened top (actually little square holes about 1/8"), with a poly loop handle (inside blue rubber tubing) to pull it out by snagging it with a brush on pole. Catcher/strainer bottom part had was a flexible rubber/plastic so that it fit flush with bottom in curve around drain. It was large enough that it could hold a lot of leaves without clogging up the main drain. The bottom "screen" was elevated somewhat, about 3" from the bottom by the "skirted" base.
I used the main drain catcher for years after we moved on to Ray Vac and then Polaris. It eventually deteriorated. So I made my own redneck version using a 5 gallon bucket, with big holes cut out of bottom and weighted down with a big chunk of concrete inside bucket. I still have that and use it occasionally when the pool gets really full with leaves and I still want some water to go through the main drain. I used clear vinyl tubing around the rope handle.
Anyone remember this system?
I'll do a crude drawing in next few days.