thank you for your answer, very inspirational.
I began to add salt to water because, even if i drank tons of water a day, I also used to go continuously to the bathroom and I was dehydrated. My worry then has become how to quantify the amount of salt to consume. The amount suggested for the water cure is 3.5 g a day (included the one in the food), while for the Himalayan Salt I found 2.5 g a day, and they suggest to take 1 tsp a day of sole. Instead I'm taking 5 tsp a day of sole, which is much more, yet my urine is not too yellow, so.
But after your post it seems there is no reason to worry about too much salt, as long as it is a natural one.
But then, I'm thinking regarding the parasites, the salt flush must have some anti-parasite action too