I had a pool about 20 years ago above ground and I used a kreepy Krawly to do the cleaning, I have just installed a new 7.4x3.8 above ground pool and I have a S50 Robot cleaner. I upgraded the filet to the fine filet and got rid of the mesh filter but I find it doesn't clean the floor as in like scrub the floor after using a clarifier so I have to manually vacuum the floor. My question is would a suction type cleaner like the kreepy krawler or others suggestion welcomed, do a better job than these robot vaccums, being an above ground pool warranty on the liner can be void if i use any robot cleaner that can clean walls.