Brian in Michigan wrote:
I have dropped my tank a couple of times. It's a 60 gallon tank. One of the times it was half full. I used a harbor freight 1000lb hydraulic table. I removed the handle so it was to lay flat to get it underneath the motorhome. I was able to jack it up to the tank and support it while I unbolted the straps and bolts. I dropped it slightly so as to remove the hoses. Then I was able to drop it all of the way down and roll it out from underneath.
I believe my tank is 75 or 80 gallons (gasoline). I used the same hydraulic table to drop the tank. One of the spot welds used to hold a tank baffle developed a leak. After playing around with sealers which would only work for a couple of months at a time, I decided to have the leaking spot patched with a weld. My cousin did the welding for no cost. No problems with fuel leaks since! (Yes, we know gas tanks are a challenge to weld safely and many won't attempt it. My cousin is a master at it and knows how to do it safely.)
I figured that hydraulic table was worth the price over paying someone else to drop & clean the tank and then weld it. It allowed me to safely lower the tank in a controlled manner. My tank is fairly long, and even with just a little liquid in it, the shift of weight as it tilts makes it a handful to deal with. The large platform on the hydraulic table made it a fairly straight forward one-man operation.
Now, I often use it as a portable, rolling table, so it still gets some use.
~Rick