If it doesnt how many eggs will it take?

Question

it been 150 eggs I still haven't got a raindish squirtle is it possible somebody could trade me or what I have a female torrent squirtle male lotad raindish

Answer 1

It might be because you were breeding a Squirtle with a Ditto. Breed a Female Squirtle with a Pokemon in its Egg Group.

 In Generation V, female Pokémon with Hidden Abilities have a 60% chance of passing on the Hidden Ability to their offspring when bred with a male Pokémon from the same Egg Group. 
 For example, if a female Darmanitan with Zen Mode breeds with a male Simisage, the offspring Darumaka may have Inner Focus instead of the usual Hustle, and would evolve into a Darmanitan with Zen Mode (instead of Sheer Force).
  Hidden Abilities cannot be passed down from male or genderless Pokémon, and will not be passed down if the female was paired with a Ditto.

Answer 2

It's because your Female Squirtle doesn't have Rain Dish.

Male Pokemon cannot pass down hidden abilities unless they are breeding with a Ditto. It wouldn't make sense for a male Pokemon to pass down abilities because they don't determine the species of the Pokemon unless they're breeding with a Ditto, so if they're breeding with a female Pokemon they can be of any species in the same egg group.

If you want a Squirtle with Rain Dish, breed a male one with a Ditto or find a female one.

Answer 3

It's because neither of the Pokémon your breeding have their Hidden Ability. You cannot pass down a Hidden Ability if you don't have one to start off with. Squirtle's Normal Ability is Torrent and Lotad's Second Ability is Rain Dish.

You can only get a Squirtle with it's Hidden Ability Rain Dish if you are breeding:

A Female Squirtle, Wartortle or Blastoise with a Male Pokémon in the same Egg Group either of them with their Hidden Ability.

Or

A Male Squirtle, Wartortle or Blastoise with it's Hidden Ability with a Ditto in Generation VI.

Source: Experience

Hope I helped :)