Thanks! With so little response, let me re-phrase. If I install a ball-valve directly at the eyelet connection on the side of the pool, I am concerned about the strain on the threads from the weight of the valve and the vibration caused by the water flow. So I intend to make a 90 degree turn down so the valve is vertical. My greatest concern is always that the hoses can come off their fittings because of the vibration caused by the flow of water. This threat is even greater when attached vertically (gravity!) instead of horizontally. Feedback on this concern (and pictures to support) greatly appreciated! Thanks in advance!