New owner. Read a bunch on the site. Have had enough chemistry to know how to calculate concentrations and much of your info makes sense to a retired Engineer.
Above Ground Intex, 4400 gal. Pool on order.
I'm on City water and a local pool-centric hardware store tested my UN-softened water and only reported that it has "a little iron", which I knew from past waters oftener analyses.
1 - Is it actually necessary to always shock when filling pool first time of the year from city water?
1a - My city water most likely has a slight chlorine smell (it used to), but we wouldn't be able to notice it any more, we're so used to it. I didn't realize that it is CC that smells, not FC…so the chlorine ion does not smell? It only smells when combined with something that it 'killed', or in some inorganic compound (laundry bleach is a hypochlorate)? NaCl doesn't smell and it sounds like it could be called "CC".
2 - NEVER MIND. ID10T Error. I just read the table for real... I have my Shock level...
3 - Also, I assume when you have just numbers for thing like FC, CC etc, it is assumed to be ppm, no?
The Pool School Chlorine / CYA Chart just has numbers. It'd be nice to have something to indicate that all numbers are in ppm or whatever they are. As an engineer it's important to always see what units are, especially when you're getting into a new area, as your Pool School is targeted to newbies.
4 - One of the store folks recommended some stuff "to remove minerals". Knowing some people travel half way around the world to soak in mineral water, I asked *how* it removed them and she said they fall to the bottom. Ok, so it precipitates them out. When I asked why would I care, she said because they can turn color - iron red, etc. DO I care? What would cause a color change, (oxidation of the iron?)
Nuf' for now.
Regards, Steve N