Forum Discussion

pasusan's avatar
pasusan
Explorer
Jun 10, 2017

Aqua Magic V flush blade replacement

Our Aqua Magic V toilet has a pedal flush and often when the blade opens it gets stuck open. When feeling down there to get it to close I notice that it is very loose and floppy. It does spring strongly into place when closed, but if it opens too far the blade will go up and catch on the outside of the seal keeping it from closing.

I wanted to replace the blade assembly, but when I look at the parts diagram on the Thetford site it doesn't show the blade assembly at all. Link

Anyone have any ideas?

9 Replies

  • Gjac's avatar
    Gjac
    Explorer III
    pasusan wrote:
    Gjac wrote:
    I looks like it is #6 in the parts diagram, having said that the blade seal that you are taking about probably has a build up of mineral deposits that is causing it to hang up on the blade seal. If you camper is a 1990 the blade has had 27 years to build up deposits. Mine was 20 years old when I had to remove the toilet and disassemble the unit to scrape off the deposits. It is not a difficult job.
    Thanks - yeah, I did replace both the seals on the 1990's toilet. :)

    This time it's for the 2004 Roadtrek and the seal seems OK for now - it's the blade assembly that doesn't work properly.
    I posted in error I meant to say the blade itself gets a mineral deposit on it not the seal.
  • Looks sort of like I need to buy a whole new toilet....

    This can sometimes be the better solution. Toilets are being sold for just North of $100, last I checked. By the time you're done cleaning, repairing, and lubing up the original, it can be a wash.
    I repaired my old Thetford because I wanted to keep the Avocado color. YMMV
  • Chris Bryant wrote:
    Try rigging a stop under the pedal so it doesn't travel as far.
    Yeah - I thought that would work... Cut a small board to fit under it. Still when pushing on the pedal it wants to fly to the side and get caught beyond the seal. If you're really-really careful with pushing the pedal down it sometimes works. :)

    Looks sort of like I need to buy a whole new toilet....
  • Flush blade on the Aqua Magic V is NOT serviceable ....no replacement part

    Only the parts as identified in your link are serviceable.

    When you replaced the bowl/blade seal did you install it with the 'beveled edge' UP?
  • gafidler wrote:
    Call Thetford and ask Tech services , they helped me with mine, If you need to work on it , it will have to be removed to work on it.
    Thanks - I'll call them, but have to wait till Monday...
  • Gjac wrote:
    I looks like it is #6 in the parts diagram, having said that the blade seal that you are taking about probably has a build up of mineral deposits that is causing it to hang up on the blade seal. If you camper is a 1990 the blade has had 27 years to build up deposits. Mine was 20 years old when I had to remove the toilet and disassemble the unit to scrape off the deposits. It is not a difficult job.
    Thanks - yeah, I did replace both the seals on the 1990's toilet. :)

    This time it's for the 2004 Roadtrek and the seal seems OK for now - it's the blade assembly that doesn't work properly.
  • Call Thetford and ask Tech services , they helped me with mine, If you need to work on it , it will have to be removed to work on it.
  • Gjac's avatar
    Gjac
    Explorer III
    I looks like it is #6 in the parts diagram, having said that the blade seal that you are taking about probably has a build up of mineral deposits that is causing it to hang up on the blade seal. If you camper is a 1990 the blade has had 27 years to build up deposits. Mine was 20 years old when I had to remove the toilet and disassemble the unit to scrape off the deposits. It is not a difficult job.