I agree. Rain and well water seems to work best. I don't drink or cook with my tap water because it's so shitty so, I don't like to feed it to my plants. I'm sure that's a location thing though.I use to give RO but now I strictly feed rain water and organic nutes and my plants have never done better!
Unless you live near A toxic waste dump or tannery lol.Use tap water and dont waste money on anything else, its a rip off.
Should be ok. Coppertone down the drain might be an issue lolI live near a tanning salon