So construction was just finished on my pool, a representative from the company that handled the construction informed me how to operate all the equipment. Unfortunately, after cleaning the filter, I left the top valve in the filter container open for about 3 hours. This meant that the water that would normally fill the filter container would spit out of that valve periodically ( I assume it was periodically). I only noticed about 3 hours later when the container spat out more water. The water level in the pool went down to about 1/5 of the skimmer openings height and I am trying to fix the problem. Any advice / information welcome