First Timer - Taking Over from Pool Service

The color is likely iron. You either need to replace the water with iron free water or filter the iron out of the water.
 
I spot-treated the rest of the visible stained areas with vitamin c tablets, and found that they got meaningfully cleaner than the rest of the pool. So, I must have low intensity iron stains basically throughout the pool.

My plan is to attempt an AA treatment in about a week and then sequester with Jack’s Magic purple stuff. In the meantime, I have a skimmer basket full of poly fill and my pool pump basket housing a large CuLator, hopefully one or both of those will start mitigating the iron in the system. I will also switch to the expensive city water for refilling the pool from now on.

Fingers crossed I will not have to keep my three kids out of the pool for too many days doing this, my credibility as a pool service replacement will wear pretty thin if I screw it up.
 
That's probably good advice; it can wait.

In the meantime, My pool water is staying quite well behaved on all fronts except the green/teal tint. There is a little hint of blue/green in one of my kids' hair -- very light blond hair that would show anything. I've had a CuLator 4.0 and two CuLator 1.0s in the skimmer / filter basket for 2 days. too soon to say whether they are doing anything; sometimes I think there might be subtle improvement in the water but it could easily just be light conditions and/or wishful thinking. I will give it a few more days with no other changes to the pool to get a data point. By then, I should receive a shipment of Jack's Magic Purple Stuff; I will try and throw a nice heavy dose of that in the pool as well. If either the CuLator or the Purple Stuff is effective, that should be the end of any extraordinary efforts for my pool this summer, and I'll wait on the AA / water exchange for pool closing time in the fall.
 
Green hair is due to copper. Only way to remove copper is to replace the copper laden water with clean water.
Those Culator things are just not sufficient to remove significant copper. They do remove what they can, but what they remove is minimal.
 
Yeah, I am aware that the hair is copper -- I get the joy of iron and copper together. I can do a 50% water exchange in a single day of pool downtime, maybe I ought to do that too before I throw the expensive Jack's stuff in the pool.
 
Good news, we have reached the last update needed for this saga!

The 50% water replacement seems to have done the trick, combined with a 2 quart dose of Jack's Magic Purple Stuff. The tint of the water looks notably lighter and more of a pure blue than a bluegreen. No more hair color problems. We are out some expense for the water, plus quite a lot of salt and some calcium, but otherwise we are in tip-top shape with the water now. As a side benefit, TA of our replacement water is much more reasonable as well, so pH is easier to deal with now. Only issue now is that the SWG seems to have blown a fuse or something, possibly because I did not turn it off manually before pumping a bunch of water to waste. Whatever the cause, repair guy is coming out this week and I've got some liquid chlorine to tide us over.

All told, I have blown through about 4 months worth of the expected savings from firing my pool guy. About one month of that was for chemical test kits and startup essentials, about one month was for other chemicals (notably the Jack's Magic is on the pricier side and I went ahead and got supply for the season), and about 2 months to replace and condition about 10k gallons. We'll see what the SWG repair bill ends up looking like. We will probably not reach the break-even cost point for a few months, but likely we will be ahead of the game by year end. The real benefit for this year is the quality rather than the cost. I will not blindly be accruing problems with scaling, metals, possible equipment damage, while my swimmers have stinging eyes and bluegreen hair half the time. So thanks, yall, for getting me up to speed, and hopefully this is where the "Trouble Free" part can begin in earnest.
 
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