james said:

You could rent a power rake to remove the thatch. Then rent a slice
seeder.

"slice seeder" is the magic word. Thank you.

These machines are expensive! Renting seems to be the only choice.

Ahyup. They're not worth the purchase cost unless it's really your
business. I'd still recommend de-thatching first, if it's really that bad.

Good luck
--

Eggs

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