I'm in "the same boat" he is ... pretty much.
Both a first timer here and in the tub, my problem's simuilar re: jet pressure.
I recently (as of 1 week) rehab'd an older unit and had strong pressure coming from my jets, strong enough that is to massage a hole rt through the sole of your foot.
Key word here is "had", that was until I relocated the heater box from ground level to upper waist high level.
I did this to be able to reach the box from the other side of the fence outside of the hot tub and in having to re-plum the pipes I added seven 90 degree turns and a few long striat pieces.
My question is by me doing this. is it possible that it decreased the jet pressure?
I've checked my hoses outside the tub for any kinks, found none.
So tonite, now after reading previous trouble shooting solutions I'm go'n to pull the filter out and run it as suggested.
I'll follow up w/ my findings and check back for your imput to my problem.
I have 3,760 post in a 3 year period on a boat forum, so you can be expecting many more from me.
And once I figure the format on post'n pic's, watch out