Anthony,
You might be right about the electric jack, but that is best option for many people.
We got our 1st trailer in Jan. had it up and down 4 or 5 times at dealer, home, 1st camping trip, back to dealer 2 or 3 times. My 07 Silverado sits high in back and the manual jack was not tall enough to get it over the ball. I used two or three 2by6's and it was okay, but still a long way up. After about my 10th or 12th jacking up and down in first 3 weeks, I decided to buy their special on the electric. Got the Ultra 3000 and thought I was done. The next 3 times I tried to use, something didn't work right. Blew a fuse one time, had to hand crank three times(harder on electric), and something broke on last time. They checked it and replaced the whole unit in about 15 min, said the bushing was bad and then discovered the nut was missing. Hopefully, the new one will be better--only used it once so far.
ANTHONYROLLIN wrote: I'm curious, why are the power jacks so popular? I realize they're a convenience, but can they handle more weight?
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With a Weight Distribution hitch (like the Equalizer), you actually have quite a bit more jacking to do. To attach the Equalizer WDH bars, you have to couple, then lock the hitch, then raise not only the hitch but the back of the attached TV until the WDH bars can be slid onto the A frame ledges. You could easily be lifting thousands of lbs.
I camped in Kentucky one time at a KOA and the site sloped so much I had a hard time getting the rear jacks down and the tongue jack was on boards least 24 30 inches high. I did have other jacks place under the front.
I knew that any minuet it would break loose and I would end up in Tennessee