I bought a valve that is made for adding water to tractor tires, cost about $9. It had several fittings for the tire valve end and you hook a garden hose to the other end. It also has a air relief valve on it so you can add water and then release the air pressure evey 30 seconds or so until you get the tire filled.
I used a cheap electric drill driven pump that I bought for $8 at Lowe's to pump the anti freeze. You will need a short (18" to 36") section of garden hose to drop into the anti freeze jugs. I used a 6" section of hose I happened to already have to go from the pump to the fill valve but you could just screw the pump directly onto the adapter.
Once I had the 2 gallons of anti freeze in a tire I used the water hose to finish filling. Most water supply systems operate at 40 pounds or higher so there is plenty of pressure to fill the tire. CAUTION: If you have high water pressure be careful you don't overinflate the tire, it could blow out. I have about 90# of pressure at my house and have to be careful when doing something like this.
It took me about an hour to do both rear tires.
Don't forget to jack up the rear end so that the tires are barely off the ground before you remove the valve stems to let the air out or you might break the bead off the rim. If you keep the valve stem at the 12 O'clock position you will get 75% fill.
You can see a valve adapter like I used at
Tire Adapter
That same site also has a good page of instructions at
Valve Adapter Instructions
In this case, a picture really is worth a thousand words.
I have never had the FEL off and I do get some tearing of the grass if I turn sharply when the ground is damp. Going slow and making wides turns would probably prevent that. Make sure you are not in 4WD on the grass or it will dig in when you turn.
Bill Tolle