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Thread: Toto Aquia Vs. Mansfield EcoQuantum 147-119

  1. #1

    Cool Toto Aquia Vs. Mansfield EcoQuantum 147-119

    I am building a new house and will be installing 3 new toilets in the next few weeks. I am only interested in Dual Flush toilets.

    I looked at the sterling and discounted it based on the MaP rating.

    Right now the two that I am seriously considering are the Toto Aquia and the Mansfield EcoQuantum, both dual flush designs.

    The Toto is a Washdown design while the Mansfield is siphon with a pressure tank.

    Caroma dual flush, Like many dual flush toilets, there isn't much water in the bowl.

    I think I really want to go with the Toto, but the cost is substantially higher, also the small water spot worries me. I have used a Caroma before and found the water spot to be way too small that it did not completely cover the waste, plus it was such a long way down that there was quite a bit of splash factor.

    Another factor is that I am on a well, and I know very little about the FlushMate system and how much water pressure it needs to affectively build up the pressure in the tank.

    I guess my questions are:

    1. Is there anyone out there that is familiar with both and can give me their impressions.

    2. Is the water spot on the Aquia better than on the Caromas? Should I even be worried about this?

    3. I thought the washdown systems needed a big Trap diameter, and I see the Aquia's trap is only 2 1/8. Should I worry about this?

    Thanks for your feedback in advance.

    Last edited by Terry; 04-23-2009 at 10:49 AM.

  2. #2
    Plumber jimbo's Avatar
    Join Date
    Aug 2004
    San Diego


    Check the 2006 MaP report on performance.

    The Sloan Flushmate in the Mansfield suggests I believe 40 PSI minimum. The performance will definitely be variable with a varying pressure on your well pump system.

  3. #3



    I have checked their performance on the "HIGH EFFICIENCY TOILETS" report last updated on 12/23/05.

    The performance of the Aquia and the Mansfield are very close, (800 vs. 825), so that does not help the decision making.

    Your comment about 40psi made me look a little harder and I found the following at the Flushmate website:

    What is the minimum pressure requirement for this unit?

    20 to 125psi or higher. The recommended range based on ANSI standards is 20 to 80 psi or higher.

  4. #4
    Forum Admin, Expert Plumber Terry's Avatar
    Join Date
    Aug 2004
    Bothell, Washington
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    In the house I have a 1.0 gallon Vorten pressure assist toilet using the new Flushmate.

    I moved in two months ago, and replaced all the toilets. It had been raining in Seattle the whole time until this last week.
    I though I was listening to my rain gutter drains all this time at night, but a few days ago I noticed I could still hear the water sound, and it wasn't raining.
    I checked the toilet, and there was the noise. There is a constant leak from the cartridge. I shut off the supply and went back to sleep.
    A comment about this 1.0 gallon toilet. There is very little bowl wash at the front of the bowl. If you drop a piece of toilet paper at the front of the bowl, it may not go down.

    The dual flush Aquia in the other bathroom, has more bowl wash, and what I perceive as a quieter flush.

  5. #5



    Thanks for the info. After reading a lot of info here and other places I think I may spend just a bit more and got for the Toto.



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