TERRY B. - It's really tough to get any kind of fluid INSIDE the inner tube without going thru the valve stem.
Seriously....NEVER put fluid in a tubeless tire. Especially if You use calcium Chloride. ALL My tire technical books from FARMALL talk about "Tire and Tube" when discussing tire fluid. The new fluid most tire shops recommend now is some sort of beet juice, almost as heavy as CaCl but not corrosive supposedly. But I know one of the bigger ag tire dealers in the Midwest just put 80 gal./tire of calcium chloride solution in some new tires for My Buddy. When Wyatt & I filled the tires on His 169 with fluid with the first Tire Bong I ever saw We used washer fluid in one and 6 gal. of about 15 gal. of used antifreeze from My PSD in the other. Not the corrosion hazard of CaCl but still a mess if Your tire comes off the bead. Fluid may not hurt the rims in a year, two, even five years but what will they be like in twenty?
I think it was Travis who had a fluid filled tubeless tire come off the rim bead in His shop several years ago. HUGE mess! Of the five tractors in My shop only ONE has fluid, CaCl, and guess how many have rust damaged rims, even with inner tubes. I'm not a big fan of fluid, (or tubeless tires on tractors for that matter) fluid's not even recommended now days with radial tires. Yeah, I know....no radials on CC's. ANYHOW...Do what You want....I have many 40+ year old CC rims/wheels in the shop that still look like new....and they've never been around CaCl fluid. And of the twenty tires on those five tractrors, only TWO don't have tubes. Yet...