In Torrevieja there are salt lagoons. Salt has been big business in Torrevieja for hundreds of years. They let sea water into the shallow lagoons, allow the water to evaporate off and then scoop up the salt. The brine from Pinoso goes into the lagoons along with the salty sea water. More salt for your money.
Torrevieja is just along the coast from us over the border in Alicante.