Hi, I just received the pool rover jr. I'm needing a little assistance from someone who has one.....I put it in the center of the pool directed to the opposite side (15 ft. length) it just kept going back and forth over the same area for a long time....do i just leave and it will get the whole pool? (the instructions that came with it were not good instructions) Should I have it going in the 30 ft. direction instead? Also after taking it out do I have to open it up to let it dry out or not? Any input is greatly appreciated!!!