Swimming Pool Chemicals Salt

swimming pool chemicals salt
How do I get my brown/blonde hair rid of the brassy color after swimming in the pool all summer?

I have naturally med brown hair, but with all the swimming this year it has turned into light brown with blond highlights. The problem is they aren’t a pretty honey blond, they’re more brassy. I’m wondering if it’s a reaction to the pool chemicals. It’s a salt water pool, (but there’s still some chlorine too)
My hair isn’t damaged really, I use alot of conditioners and products for that. I mean, obviously it’s not perfectly healthy, but not too bad.

Blue Malva by Aveda

Chlorine Salt Free Swimming Pool Water Santa Monica