I'm just setting up my first intex (ultra) metal frame pool and I noticed after it rained that water built up in the seam around the pool where the liner hangs off the frame. I would assume if the blue version (non-ultra) has the same design it would have this same issue. I am thinking that the water is going to get stagnant and gross (think algae, mosquito larvae, etc.) over time. My air compressor will blow the water right out of there but that is a hassle to do that all the time. Has anyone figured out a trick to eliminate this problem? Thanks in advance.