I have a 12' x 24' IG pool. First 6' is 20" deep, then a straight vertical drop then the remaining 18' is 42" deep. Nominally 7,000 gallons. Using 3/4 Hp 10 gpm pump and cartridge filter that was meant for an above ground pool but working great. Considering the small size, pump and it's flat bottom I was going to use recommendations for above ground pool cleaners, but I am worried that will not address the 6' 'shelf'. Please let me know if you have any recommendations. I was hoping to find a pressure side cleaner. Thank you!