ELVN11

We bought a caldera salt system spa about 4 months ago. I’m having the same issue with a horrible rash all over my body and it gets worse the more I use the hot tub. We’ve drained it 3 times and its also good for about a week then rash comes back. I’m really frustrated with this. We spent a lot of money on this spa and I just can’t go in it. Not sure where to go from here. Also the dealer has been zero help. I’ve had pools and hot tubes my whole life and never had an issue. I’m wondering now if it’s actually something with the salt system and the chemicals mixing with the salt.