Update: installed Dole flow control ( 7 gpm) and a cool transparent flow-meter (Omega device off ****). Running two showers and two sink faucets only pulled 5 gpm. But re-filling the plumbing, displacing the air, easily went up to flow-meter max 15 gpm- the Dole flow control isn't magic, it doesnt work during non-typical (air-in-the-system) situations.
I re-chlorinated after the carbon filter during this refill of the internal plumbing. Previously, I was following some instructions that had me remove a cartridge to fill up a housing with chlorine. I havent plumbed in a shutoff right after the filter, so after I shock the plumbing with the chlorine, letting the plumbing sit chlorinated for a day, I then have to drain the house's plumbing to change the cartridge back in. But re-filling the entire house's plumbing might have defeated the purpose, if the incoming water is dirty- that surge challenges most flow controls, I think, from watching the flowmeter. So chlorinating with the cartridges in, and not needing to drain the system after that, might help preventing a break-thru of bacteria past the UV. WHich is what I did. And I never drained the hot water heater, to avoid the surge of refilling that. Sorry septic tank.
And the lab result came back totally non-infected, below detection levels. Thats almost too good- I am a little worried about residual chlorine. But a better result. I think I now have to remove cysts, with some .5 micron or less? Looking at ultra filtration .2 micron. RO not an option on a well, in a dry/drought area, in my opinion, due to "waste" water.
Turbidity is 4.4 NTU, post Pura UV20, but I think the water was pretty clear before that too.
Thanks