I install a device, a spin-down strainer, on every well-water sprinkler system, whether it's needed or not, even though it's usage comes with a small energy cost (about a 2 psi pressure drop) ~ the value of the time it would take to find out that it isn't needed is more than that of the strainer itself, and to do without a strainer when it's actually needed can damage sprinkler heads and valves, again costing more than the strainer does, so simple economy dictates the use of the strainer. The customers don't have any say in this policy.
A well and pump guy setting up a water system with a CSV, or equivalent device, is working on a similar wavelength, desiring system reliability over any other considerations, including minimum possible energy consumption.
You can argue these concepts, but pros hate callbacks, and they want to deliver reliable work at a competitive price.
All that being said, I look at a hatcheted thread with mixed feelings, since there can be some useful information being posted, even when the general ambience is that of a pie fight. The censoring can diminish the pool of knowledge, and I begin to think of the well-meaning folks who want to pull "Huckleberry Finn" from our libraries.