Best Of

IMHO you can throw all the ultrasonic meters in the garbage. I have not seen 1 job when they were accurate. They don't work with glycol, and they don't work with bubbles in the pipe.

If you want to get the flow you have to install a circuit setter and measure the pressure drop. Did you have both pumps running while testing or did you test 1 at a time? Guessing they were both running.

You making flow on zone 2 but not zone 1 so you need some balancing done. Put 3 circuit setters in so you can balance. . You need to balance because for some reason (piping geometry) the smaller zone is getting more flow maybe it is shorter. Can you valve off 1 zone and just run that pump? Zone 2 your are pumping almost double your design. If you can throttle that zone the other zone might pick up.

If you dont get any more flow on high speed then medium speed that tells me you out of head caacity at least on the larger zone.

On zone 1 if your flow of 6.3 gpm and head of 10' is accurate (which I doubt) to get 12.6 gpm that you want you would have a head of 40'. So something is way off.

I can only speak of my trade school education which was First Class: Plumbers Local 2 Four Year Apprenticeship, Manhattan & Bronx . We went to school for a full day, every other week and worked side by side under seasoned, Union, Journeyman plumbers.

Along with shop class, we did mechanical drawing, code and theory. As far as Math, it was kept extremely simple...only the important formulae that we were expected to use every opportunity we had.

By the end of 4 yrs, converting decimals to fractions and vice versa, 1.41 for a 45 degree offset, rolling offset, takeoff, et al where ingrained and second nature. Most importantly, we were taught the quick, fast and dirty Rules of Thumb...not long , complicated math problems that Blue Collar guys to sleep 😴. Mad Dog

"How could they be better?" Have the administration and the faculty working together for what's best for the students. If you find that school, you have won.

What resources don't the primary and secondary schools have access to?

Just textbooks and teachers are all that is needed.

My financially strapped school district offered Algebra 1 & 2, geometry, trigonometery, and the beginning of collage level calculus. (late 1960's).

Having taken all of these prepared anyone for any trade school math.

Have you been in a grade school classroom lately? Mayhem! Any education received may be pure luck.

I believe in this day and age more than ever it is incumbent on the parents to assure the students are actually learning.

the textbook explains it more or less one way. there are many other ways to explain it and many different algorithms for that matter. if you don't get that particular way you probably aren't going to learn much math in the school systems. different people learn different ways and most school systems don't have the time to explain it different ways to different people.