he said, no prob with stairtool so I assumed a problem with the wand.
Butler has jet screens too but unlikely they'd all clog.
Yes, I've seen intermittent, gradual loss in pressure from partially clogged strainers, also debris collecting behind QDs.
It's also symptomatic of clogged filter to the pump...like the way auto fuel pump filters clog gradually ...you' usually get some warning before they shut you down completely.
I had a van once that ran fine except on the freeway. Get it up to speed and randomly it'd bog down. Overpriced Chrysler dealer mechanic couldn't figure it out but concluded, 'well' it's gotta be either fuel or electrical.'
Well, duh. What else? alignment of the stars?
Anyway, turns out it was hair in the gas tank finding its way randomly to the outlet to the fuel line... at least when I removed & flushed the gas tank it never did it again. Guess how the hair got in there?
I had used self-tapping screws to mount a hose reel a couple years earlier, had since moved the reel leaving the holes open. One screw had pierced the gas tank. I know...here's your sign dumbass.
I've learned that 95% of the problems in my life were caused by me, the other 5% will soon be discovered as mine as well. Who was it who said 'know thyself'?