Mira excel cartridge / power shower.

Shower head leaking so I isolated the water supply to the pump, removed the cartridge, cleaned out inlet filters and squirted some lube into the moving parts. Reassembled, turned water supply back on, bled by running shower on hot then cold then turned power back on to pump. Pump used to screech a bit but had good output. Pump is now quiet but the flow/pressure coming out of the shower head is approx half what it used to be. Any idea as to where the issue could be? Does the cartridge have internal preset flow restrictors for hot & cold, and would it make a difference if it was installed upside down?
Asked 4 years ago by Rob Brockie-Donald, Aberdeen
The Excel cartridge is fitted with the cold to the right and the hot to the left, if this is the way it was fitted then you may have a faulty cartridge.

Answered 4 years ago by Barrie Seabright

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