I installed a liquidator and am using 10% liquid chlorine in it. I have the valve wide open on it and the ball only goes up to maybe 2 or three and the chlorine level will come all the way down to about .5 if I don't have chlorine to the pool. I have looked at pics of others installations and it seems to be installed right. not sure what I can do. The pool is a 24 ft above ground and I have a brand new 1.5 HP Hi Flow Waterway pump. Any suggestions on what I should look for?