eBay with vipoutlet has the open box Aiper Scuba 800W Cordless Robotic Automatic Pool Cleaner (Gray) on sale for $55 - 8% offwith coupon code TAKE8OFFSALE [Exp 5/31] = $51 with free shipping. See reviews at Walmart.

• 90 minutes of cleaning on a 2.5 hour charge time. Designed for above-ground pools up to 860sq.ft.