I recently dumped my autopilot dig 220 after 6 yrs for $300 since the digital board went and it was going to cost $350 to replace. I bought the aqua-rite aqr-x296 arid climate one with a 15k cell. Looking at the instructions I could not find anywhere which way the cell should face. I know the flo sensor has an arrow facing where the flow should go but not the cell. It looks the same almost except one side is a bit bulgier. A pool store told me the bulgier side should be on the side where the return to the pool is. He did not seem very convincing plus he told me that they install the cell between the pump and the filter.Everywhere it tells you to install after the pump on the return to the pool. Any ideas rather than call goldline or hayward.