Re: Send packing the stuffing gland..
Are the hose clamps properly tightened (and doubled up if there's room)? Has the motor shifted and pulled the hose off or misaligned it? I can't imagine the hose letting go unless the clamps were loose or something forced it. I think the system you have is pretty much ideal and, with regular checking of the hose clamps, should give you trouble-free service. I have the same setup: teflon stuffing and a greaser on the gland. I tighten my stuffing just enough so it doesn't drip. I give the grease gun a little turn every 25 hours or so to force a little more grease into the gland. The grease protects the shaft and keeps it running cool and dry (no drips). After a run, put your hand on the stuffing box to make sure it isn't running hot. Not sure a dripless PPS system will be any more reliable.