We have been on the road for a month camping at several locations for about a week each. It seems one of the landing jacks is popping to where it shakes the rig. I was a quart low on fluid a few weeks back which I filled the reservoir. Are my seals going? I dont see any leakage around any jacks. I am afraid the jacks are going to give out on me. Thoughts please.
I would start by addressing your observation that the system was low on fluid.
This supports that you have a leak somewhere. It could be at the pump, the lines, fittings, jacks, or the slide out cylinders. You may have to access via the underbelly to check the entire system for leakage. Next, I would be sure to bleed the system of any air that may have entered due to the low level.
Once items above are confirmed to be 100%. You could consider adding the anti stiction fluid .Check out the resources section of this forum for the document that contains the details.