Hard water buildup after holiday

It seems like my post before didn't post (It's not visible on my account). So, I'll try one more time. I'm sorry if it posts two times now :/

Hi everyone :) I'm new here and couldn't find a discussion that fits my question, so I hope it's okay that I'm starting a new one.
So, for the holidays I've stayed in Turkey with my family and while everything was great, the water unfortunately wasn't. I started noticing the lack of definition and shine after the first wash already. My hair is normally 2c-3a, but they look 2b now and are really dry. There weren't a lot of curly hair products, so stuck with the ogx clarifying shampoo. I had to leave that in Turkey, so I gave it to my cousin who also has curly hair. Back in Germany, I did an ACV rinse, but it didn't seem to work too much, but I definitely see some improvement. Some strands are even almost back to normal. Should I just keep on doing the rinse, or should I buy a clarifying shampoo? I was thinking the Joico K-Pak Clarifying Shampoo is good. Or do you recommend anything else? I'm on a budget and I never really had to deal with hard Water, so I'm kinda freaking out.

Original author: JessicaJulie