Thanks guys, I think for now I'll leaver like she is. For me extra weight in the back is a good thing. I'm always try to scoop up more than the assend will hold down. Later BobCat.
I'm sure you likely know this, but farm tractors have long used this technique in the rear tires to improve traction and pulling power. Some use the calcium chloride, but many, including myself, use a mixture of automotive antifreeze and water and tubes. This helps with the rust issue.
I have a small 40 hp Ford and I can tell you that there is significant traction improvement when the tires are filled, especially using a turning plow or heavy disc. I don't have a front loader, so the counter weight isn't needed.
A special adapter is used to allow the air to escape while filling the tire with water using a hose.