Founder

When you buy a horse and have the vet come out and do a vet check... Can they tell if a horse has foundered in the past? Or do you need to specially ask them to look at that... Or can they at all... with just a normal vet check.

I'm not sure about all horses, but horses I have seen that have foundered, have founder rings.
I believe a vet's only way of seeing if the horse has it is through x-ray.

My farrier is really good and has been able to tell me everytime. Kita has foundered twice, he wasn't around for either time and he knew that she foundered twice.

I would say that any qualified Vet should be able to detect a foundered horse visually. As for the degree of rotation/damage would have to have x-rays.

Yes, a vet (or farrier) should be able to tell whether or not a horse has foundered.....and if you suspect founder x-rays of the feet are a good way to go.