You're very welcome.
We don't often run into the situation where there's not enough suction head to get the LQ to flow because most most pools have enough suction restriction to create enough head to suck the chlorine out if the line. Once in a while we see a pool with a very short run to the pump and there's something (like you're valve) that takes all the suction head right at the pump suction.
P.S. As an afterthought, you could have placed the outlet of the LQ in the basket drain and closed the valve a little and that would have possibly worked.