Well I don't do my it it often.Doesn't make sense...
To run 2.5 to get increased airflow then 1.5 to reduce what you gained?
Actually I believe it's called the2.5 to 2 to 1.5
is that called "chokin' the chicken"??
I dunno about buying it, I'd have to try it. I got this used and it's my first truck mount that i got in 2019. The suction does well at 150 ft as long you set the blower for it. But the upgrading first run of hose to 2.5 improved it greatly. No complaints at all.Would you buy the new 425? What is suction like 100-150 ft away all the way up