Is it still helpful to do detox baths if I don't have a shower/bath filter? I want one, but it's just not in the budget right now. I just want to make sure I'm not doing more harm than good by soaking in unfiltered water.

Detox baths are still fine if you don't have a filter. Here is a link to a ball you can buy to put in the bathtub that will purify the water. They are much less expensive than installing an entire filter system. Soothing baths will be helpful or adding in the ACV and clay to the bath with magnesium oil one time/week will help many of you.