tap water

[Aquattro]

Originally Posted by paddyob

Keep saying it. ha ha!

If my tank crashes in the spring due to run off, Ill eat this thread.

Well, you probably won't have to eat any thread. Very unlikely to kill your reef with tap water. And if it did, you could just buy new corals. Sure, way more money than a RO unit, but it's probably not going to be an issue. Probably.
I'm sure that nobody in the history of water has ever tossed anything into a public source. The planet never builds aquifers near veins of copper. Seagulls make sure they don't poop in water (very polite birds). Agricultural run off only goes into non public water (well, except for that Kelowna example I gave). So I'm sure you're fine. I can almost guarantee it. almost. probably.unlikely. Not reassuring words for my coral. So for what, 5% of my total coral stock, I CAN guarantee, to much more comfortable level, that water will not introduce bad things into my tank.
I have enough chemistry going on in the reef I can't control, I'm going to make sure that I control the ones I can.
But your reef is safe. After all, it's never crashed.