Parker, sorry for my absence; but you are in good hands with the experts here in our group.
Still take out Nori holder, frag rack, and acclimation box. Nothing in tank except to make it run.
Dont’ add anything to tank - if you do have fish/CUC in there and can’t move to temp tank, just feed them the basics - no extra stuff and don’t feed corals. Again, it would help if you listed what you feed and how often. I agree with Tim/Frank/Joel, it’s the water and/or leakage from equipment. But it’s still good for everyone to know exactly what your doing to give you the best next steps.
Ignore your LFS. With everything going on in your tank, their first suggestion should NOT be frag and dip a coral -says a lot about them.
Take the advice Frank is giving you on the RODI system. If you haven’t already done so, BRS has great tutorial videos all about RODI. It was a series, watch them before you ask Frank/Tim.Joel a lot of questions. Most of your questions will be learned through one 5-minute video.
It’s not an easy subject as there are multiple ways to go about it AND you have to factor in your houses setup; your parents wants on disturbing their house; and budget.
For now, while that gets discussed and you learn more, keep using distilled water and make your own saltwater- BRS even shows some vendor specific videos on how to make if you are unsure. What salt are you using?
We are all lucky to have these guys as quick as a text- THIS is your LFS!
And when I mean guys, I also mean us gals, I’m just showing my boomer age by not typing he/she.