[kozzy]

My last rig, I didn't have the auto level system, I had tried Tri Pods in the past, and they work, but I got sick of lugging it around. I bought and installed a set of JT Strong Arms...WOW...not only did they stop almost all movement, but they were far superior to the tri pod, and you don't have to lug it around.
As for the sensors, I always do a good flush every time I empty my tanks, and they work fine, but I have done that since day one. Yours being a used unit, if the other owners were not as anal, stuff might have built up on them. They are not the greatest design. anyways.
Strongly recommend the JT Strong Arms, I took them off the unit I traded in, sold them to a friend and he loves them too.