I have an intex pool and recently had some yellow jackets build a hive inside one of the openings around the top rail. I shot some wasp/hornet spray in there and then flushed it out with the hose. When I flushed it out with the hose, the bug spray got in the pool and now there is a clear oily film on the surface of the water. Do I need to drain all the water and do a complete refill?