I commented in another thread about bending square tubing and how useful it is, and it reminded me of something I did earlier this spring...rehabbing a parts washer that my dad rescued from being dumpstered at his work.
Sorry I didn't take any "before" pictures. Dad is a diesel/heavy equipment mechanic, so you can imagine how nasty a parts washer gets in that environment. I had to scrape about 1/2" of nasty black goo out of the bottom of the sink.
I custom-built a tank and small stand for it. Most of these things sit on a drum that eventually rots out at the bottom because they sit directly on the floor. It also makes them a pain to drain used solvent from, and a pain to move.
Here's the start of the tank. This is 18 gauge cold rolled mild steel. I made the tank in two halves to try to minimize welding.
After tacking the two halves together:
The cross brakes are to try to stiffen the bottom a little and get the solvent to flow toward the drain that eventually went in the center. I welded around the flange and down in the corners with the TIG...no leaks!
Filler pieces for the corners:
And my little stand out of 3/4" square tubing:
This is intended to serve a couple purposes. First, it gets the tank off the floor so it doesn't rot from moisture getting trapped under it, and it allows for a drain in the bottom of the tank. I made it wide enough to allow the forks of my pallet jack to get under it so it can be easily moved with 30 gallons of solvent in it.
I had gotten the die a couple weeks prior to doing this project to do another project for a paying customer. Unfortunately, I can't post photos of that because it's a prototype for something they're going to market in 2017.
Filter to keep the solvent clean:
Test fitting the sink on it. This is after cleaning it several times!
You can barely see the little piece at the corner of the base of the tank to keep it from sliding off the base. There's also one on the opposite corner.
This got pressed into immediate service when I was rebuilding the rear end for the sprint car, and has been used a ton since then. Having a parts washer beats the heck out of using many, many cans of brake cleaner!