Water is leaking all around the dome, so I am going to replace the dome's o-ring. I have the specific wrench to do this and also bought some pool lube stuff. Is there anything else I need to know, any tips or tricks before I attempt this? I know this particular filter can develop hairline cracks around the dome, and I'm hoping this isn't my problem.
Also, in another thread I read where when you turn your pump off, your gage should go to zero. Yesterday when the pump shut off, the gage still read 19 psi (usual psi for this filter). Does this sound right, or should it have gone down to zero?