OK To Put Water In Tires?

I'm looking to add weight to the rear of my 77 ST-18. I remember reading somewhere you should add a chemical to the water, for anti-rust or to protect the tires I don't know. I saw one post here about putting antifreeze in the tires diluted I assume. I live in Texas where freezing isn't much of an issue.

Any thoughts would be appreciated. I already bought the little device to connect a hose to a schraeder valve.

Chuck in Texas.

I saw a reference to this product on another tractor site:

http://www.rimguard.biz/


Beet juice! Heavier than water, won't corrode.

I have a 1972 SS15 with the 23x10.50-12 rear Super Lug tires. I filled them with water and the weight per tire went from 30 pounds to 90 pounds. Then I added a 50 pound cast iron wheel weight also to each wheel. I gained 140 pounds per wheel this way. I live in South Louisiana where freezing is NOT a problem. I have plenty of traction, and have won every time I have entered the lawn mower pull in my weight class.