Gas problem with 1994 Bobcat 225g

[Bushytails]

On my 225nt, a bad grommet was allowing rainwater and crap into the fuel tank... might want to check to see if yours has a similar issue.

[Chas007]

Here's what I did.
I used a hand pump to remove the fuel. I have a ball valve with a 3 foot piece of copper tubing attached. I have a quick disconnect on it for my air line. I used the air compressor with this setup to blow a bunch of trash out of it. I then put a microfiber towel on the end of an old 1/8" gas welding rod and ran it in and around in the tank removing a bunch more crap. I waited for the tank to dry and blew it out again, getting nothing but fine dust this time. I used a brand new microfiber towel and ran it in the tank again. The towel came out clean. Blew it out again just to be sure. I believe it's good to go now. I will keep an extra fuel filter or two on hand just incase.
Thanks for the advice guys.

[Bushytails]

I usually clean dirty gas tanks by installing an oversized fuel filter...

[Sberry]

Vac it with air suction tool.

[Chas007]

I just purchased a used Bobcat 225g. It had been sitting for several years and the owner had a mechanic to clean the carburetor and get it running. When I went to buy it we cranked it and I welding with it in all the settings. It ran and welded fine. When I got it home and started cleaning it up I took a flashlight and looked down in the gas tank. It looks like a septic tank down in there. The fuel hose was not going to the bottom of the tank and it has no screen of any type on the end of it.

I have pumped out the tank. Sprayed my pressure sprayer down in there and then ran a water hose in it for a while to try and flush it out. I got a lot of stuff out of it, but there is still a ton of solids in it. A lot of it is stuck to the bottom of the tank like dried clay I can see the cracking of it.
I don't want to have to pull the motor and generator to get the tank out. (Side Note) this seems like a poor design with the tank being put in first and everything else bolted on top of it.

I have ordered a plastic 12 gallon marine gas tank and I'm going to run a longer hose to it and set it on the ground. I would still like to use the original tank also if I can get it cleaned out.

My question is, does anyone know of a way to clean out the original tank without having to pull it out of the welder frame?

Thanks in advance,

Chas