Foothill, I just caught up on your build thread. One thing we need to establish is if your pond builder gave you an accurate measurement for the gallons of your ponds. This is very very important because it influences the dosing rates of things we are recommending. The Prime will not be an issue and can be overdosed with a degree of safety. Other things, like salt and medications, need to have an accurate water measurement for safety.
Did your pond builder use a meter to measure the amount of water he put in there?
There are pond calculators that can help give a guideline of water volume. I looked for it on the WWKC site but am not familiar with the new layout so can't find it on there. I'm linking a different one I found online:
https://www.apifishcare.com/help-calculator.php
For example, a round 10' wide and 2' deep pond comes out to 1178 gallons. That is with no rocks, no sloped sides and so forth.
There is a reverse way to check total gallons by using a salt meter which I would suggest you have on hand anyway. Basically, take the salt measurement before you add any salt. Then add a fixed amount, say 20 lbs, let that dissolve into the water. Come back in say 5 hours and take a salt reading. Subtract your first reading from the second reading, then on the koi calculators I told you about before, enter 20 lbs and the salinity difference. It will calculate your gallons for you.