I installed a Hayward skimmer and return last week. With only one return in my 32’ x 16’ rectangular pool I’m having a hard time positioning the return. I’m sure I really need another return on the opposite wall, but I’m going to try to adjust my return eye first. I cubbed up some floating foam, and tossed it in the pool! I have popcorn and an adult beverage, let the show begin! I may need to cut the pieces smaller. How long should I wait to see if this is successful?