No I'm not certain of anything (you have probably realized this by many of my past posts!). My ro reject goes into my ss holding tank. The day before yesterday I heard it overflowing which is not unusual as I do much more auto business than ss. What I did notice was a solid stream about as big as my pinkie coming out of the reject hose and I did not hear anything running. Yesterday I noticed the blinking light again and climbed up to look and there was a "hard dribble" coming out of the reject hose and again I could not hear anything running. For the record I can't hear $hit, even without stuff running. When I pushed the pump contactor a coule of times the stream stopped. I thought the solenoid might be failing. I know very little about my JC pump bench since I just learn about stuff when it messes up. I'm at the 5 1/2 year point now and it seems that I am about to learn a lot about it, unfortunately.
Thanks,
J