Abilities, unlike moves, can't be bred onto a Pokemon by another different Pokemon. It has to be "born" or caught with the ability.
That being said, Water Absorb is the Hidden Ability so it cannot be bred onto the Tympole. You must obtain it from a Hidden Grotto or online in an event or from the Dream World.
So you can't breed Hidden Abilities the way you can moves. The ability will be natural to that Pokemon and that Pokemon alone.