I was given a used hottub. I'm considering replacing the "spa pack" with a newer kit because the old kit has a leak by one of the pressure switches on the heater tube.
the old tub does not have a blower.
My question is this, how much of a difference does a blower make to the jets?
if it is a huge difference, is it possible to retro fit a blower into a system that was designed without jets?