Random Photos.

[The Brew Mentor]

I was more thinking of the chemical composition of the stuff that comes out of the city water system. After treatment. That’s gotta be the pond craigerrr is going to wade across?

And yes, @Craigerrr should be able to skip a rock across it on his way over!

 

[BarbarianBrewer]

Honestly, it's not overdone, I just treat it for chlorine, and add small amounts of salts and acid.
The pH is ~7.3 so pretty easy to work with.
Oh, and it tastes good right out of the faucet too.

I get my water from the big pond just to the west of Brian's pond. My pH is a little higher (~7.6) and just like @The Brew Mentor , I usually only add a few grams of gypsum and calcium chloride. Because it's a big lake, there isn't a seasonal variability (that I know of). Plus, because my water comes from Lake Michigan and returns back to Lake Michigan, I don't really need to worry too much about water conservation. I don't waste it, because I still need to pay for it, but, I don't have to worry about draining the lake either.