Brain trust plumbing help...

[Mark W]

Can't hurt to try, you might get lucky and avoid some digging. But to my mind if the male section is cracked there are low odds of getting enough of anything in the right place via a coating of the female threads to hold up to pressurized water for long (without putting enough in to clog the hydrant). Good luck.

I don't think this would work. Could maybe try the fast cure version of this. This family of products are moisture cure urethanes. They pull water from the air to cure. Don't know if they will cure when covered with soil but there is moisture in dirt.