Return pipes cracked under concrete slab due to bad winterization

I have a 35,000 gallon, in ground pool in Upstate New York and at least one of the return pipes is leaking.

The pool loses water rapidly when I'm filtering. I noticed water buildup on the yard at the edge of the slab. I dug down at that edge to beneath the slab and water is gushing out when I run the filter.

The pool patio has other concrete cuts where this same type of damage occurred and was repaired before we bought this house. I don't want to have to cut concrete.

I'd like to repair it with epoxy resin or whatever the latest under-slab-no-dig technique is.

Do they make a do it yourself? It's only about 5 feet of pipe I'd have to fix. Theoretically I could just make a huge tub of epoxy and a big brush on a fish wire, enter the pipe from the pool end and coat the inside.

Walt