Daniel Prince wrote:

I have a handcart with tubeless tires. One of the tires has developed a
leak in the sidewall. It goes completely flat in about a day. (I wish
they had used a solid rubber tire.)

What is the best way to repair this tire? Would one of those liquid
tire sealants work? Thank you in advance for all replies.

I had the same problem and took the wheels to Walmart and had some new
tires put on. The new ones were a lot heavier duty.

--
Jim Rusling
Partially Retired
Mustang, OK
http://www.rusling.org