Hi, we have an Intellichlor salt generator. Whenever the pump is off the flow switch stays green. I took it off and tested the flow switch and it works fine when it’s not hooked up. I push it and it comes on I let go and it turns off. But once it’s hooked up and water starts flowing through it doesn’t shut back off. Also, when I took it off all the water drained from the filters. So it makes me wonder if the water draining out if holding the switch on.