Trash pumps typically have larger impeller vanes and housings than semi-trash pumps do, and they can pass larger materials.

Low oil shutdowns are fairly commonplace among engine manufacturers now. Even the basic, 6.5 HP briggs I have on the shelf are utilizing them. Overall I think they are a good idea, but they don't work worth a darn on a rototiller.....

"Forget pounds and ounces, I'm figuring displacement!"

If we accept that: MBG(+)FGSF(=)HBG(F1)
And we surmise that: BG(>)HBG(F1) while GSF(<)HBG(F1)
Would it hold true that: HBG(F1)(+)AM500(x)q.d.(=)1.5lbGRWT?
PB answer: It depends.