Forum Discussion

Jerry_B's avatar
Jerry_B
Explorer
Feb 05, 2015

Want to replace the Sealand 210 toilet. Questions.

My Sealand 210 toilet has been a PIA since new. The water/flush mechanism gets stiff and the ball valve won't close all the way. This Sealand is bolted to the flange with two bolts/nuts and two lag bolts into the floor near the rear of the toilet. I bought a new Thetford 310 which we liked but it needs an adaptor to fit my 4" flange. Anyone installed a replacement? What kind of adapter do I need? Wonder why my MS has a 4" to 3" flange??
  • MO_Trout_Bum's avatar
    MO_Trout_Bum
    Explorer
    Feb 08, 2015
    We had the same problem with our Domestic 310. Replaced the water valve a few weeks ago and it works totally different now. I was very surprised, and it was a ten minute job to replace.
  • Jerry_B's avatar
    Jerry_B
    Explorer
    Feb 06, 2015
    Cummins12V98 wrote:
    Jerry B wrote:
    My Sealand 210 toilet has been a PIA since new. The water/flush mechanism gets stiff and the ball valve won't close all the way. This Sealand is bolted to the flange with two bolts/nuts and two lag bolts into the floor near the rear of the toilet. I bought a new Thetford 310 which we liked but it needs an adaptor to fit my 4" flange. Anyone installed a replacement? What kind of adapter do I need? Wonder why my MS has a 4" to 3" flange??


    I'm willing to bet your two screws that hold your spring cartridge are too tight. Mine has been trouble free since I adjusted it properly.

    I posted this over on the DRV forum. Worked for a week, then stiff again. The Sealand 210 would make a better fish habitat than toilet. If it ever would hold water.
  • Jerry_B's avatar
    Jerry_B
    Explorer
    Feb 06, 2015
    NMDriver wrote:
    Maybe what you want? I am not sure if this is what you are looking for or not.
    \

    My new toilet ia a "Thetford" 310 ReVolution. Got if from Camping World and Thetford is all over the box. Regardless, it is made for a 3" flange and mine id 4". It leaked like a sieve.

    I am not correct. The new toilet was a Dometic 310 not Thetford. I stand corrected. Sorry.
  • Dog_Folks's avatar
    Dog_Folks
    Explorer
    Feb 06, 2015
    Just passed one year of use with the Dometic310.

    Very pleased with it. Is taller than the 210 making it much easier to get on and off. The flush action keeps the bowl very clean. No rim.
  • Cummins12V98's avatar
    Cummins12V98
    Explorer III
    Feb 05, 2015
    Jerry B wrote:
    My Sealand 210 toilet has been a PIA since new. The water/flush mechanism gets stiff and the ball valve won't close all the way. This Sealand is bolted to the flange with two bolts/nuts and two lag bolts into the floor near the rear of the toilet. I bought a new Thetford 310 which we liked but it needs an adaptor to fit my 4" flange. Anyone installed a replacement? What kind of adapter do I need? Wonder why my MS has a 4" to 3" flange??


    I'm willing to bet your two screws that hold your spring cartridge are too tight. Mine has been trouble free since I adjusted it properly.
  • Ed_Gee's avatar
    Ed_Gee
    Explorer II
    Feb 05, 2015
    I'm a bit confused by your comments. Thetford does not make a model 310; Dometic does - and its a fine RV toilet in my opinion. We have the Dometic 320 and are very pleased with it compared to the cheap Thetford Bravura unit we previously had. Dometic, by the way, was purchased by Sealand so is now supported by Sealand.

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