Thetford makes good pumps. No pumps last forever, actually only 4 to 5 years of constant use because the pump sucks air at first startup before pumping fluid. Air ruins the pump. The pump also collects sand (small tiny particles) which act like sandpaper and ruins the shaft, and impeller, etc. It's cheaper to buy another pump than to fix it, because more importantly you won't find parts to fix pumps. whether RV pumps, or Fountain pumps - the reason is the pumps require to be sealed - factory seal. So no one will carry parts.
Question edited for correct spelling of maker 'Noen' to 'Moen'.
'Fix' as in it is leaking? Or tighten it down because it is wobbly, or something completely different?
Well, we can have a one on one seminar by the internet. I've been a pumpman for 20 years. I can share with you my experience (household pumps, suibmersible pumps, turbine pumps, gear pumps, piston pumps, dewatering pumps, mud pumps, trash pumps, mining pumps, solids handling pump, etc....) Just take your pick. Just send in your e-mail for assistance. God bless.
It is leaking due to a defective mechanical seal. It needs to be replaced. To replace it, is to take the pumpcase off by taking off the bolts that hold it. Then, take the impeller off to take the mechanical seal behind it. Put the replacement in, and reassemble the pump. Just get in touch with us by e-mail to get more assistance.
Move the lever or turn the knob. Check the stop tap under the sink. Make sure the faucet control knob or lever is tight, There is normally a removable cover that hides the screw..
Question edited for clarity, full 'make model (what it is)'.
This a Menards special. To remove handles, look for a small hole hidden from the front. They take a small Allen Key.