It is not possible.
The exchange process is a slow process. Normally in the 7-15 gpm rate, depending on your sump pump capability. I do not see how you can do it with truck in water. In your case, you will need to drain the pool and refill with the truck. I do not remember your risk issues but you will need to manage them.
Your fill water has TH 1000?? I cannot see how your fill water is the same as your pool, unless you do not use the fill water to actually fill the pool. Again, questionable test strip results.
Thank you for your replies!
Maybe the CYA in the well water comes from the mild chlorine that is put into our very large water storage tank. I think they use tablets or granules.
I have just checked the incoming water coming from our well again with the doubtful test strips. This morning it shows
TH - 500-600
TC - 0
FC - 0
pH - 7.8 - 8.0
TA - 240
CYA - 15
The well water is stored in a very large tank for the community and gravity-fed to each lot in our subdivision. They do put something in that adds chlorine to the storage tank. I will try to find out exactly what that is.
I fill my pool from a hose using the well water but I have a scale-stop filter on that line that has helped keep the mineral deposits at the water line down very well.
It is filtered about 12 hours a day with the solar pump at an average of about 10PSI.
It will probably be another 8 or 9 days before my TF100 kit gets here. I will be leaving for the summer soon and want to have this figured out before I go. So my plan is to pump out 15 inches or so, about 5,000 gallons, and have it filled immediately with trucked water. It will come in two trucks of 10,000 liters each. I'm ordering from two different water guys so we don't have to wait for one to go refill. (My maintenance person is coming today to try a couple of methods for draining - using an external 1.5 hp pump or a submersible pump. )
We are planning this for tomorrow. Hopefully this won't be a risk to the liner. That is my biggest concern.
If there is a better way to accomplish this, or if you think it is too risky for the liner, I'd appreciate your thoughts.
Is there somewhere that describes the exchange method?
Thank you all so much for sharing your ideas.
When you get your TF-100 and you do a test and compare those with the strips you will throw the rest of them away too. Just looking at the latest test strips you used, it shows your well water has cyanuric acid. I don't even think that's possible.