Sloan Flushmate Pressure Assisted Toilet Review

411 plumb I’m sure everyone has met a Sloan Flushmate Pressure Assisted Toilet by now. It may have been a little startling as you felt the handle push back a little bit then the loud forceful flush as water shot out of the siphon jet under pressure and propelled the waste out of the toilet. Sloan Flushmate is headquartered in New Hudson, Michigan and is a division of the Sloan Valve Company of Franklin Park, Illinois. Sloan Valve, which has been in operation since 1906, produces plumbing products for commercial, industrial and institutional markets worldwide. Sloan Flushmate does not manufacture the toilets but does manufacture the Flushmate Pressure Assisted Flushing System which is used by toilet manufacturers in their designs.

The Sloan Flushmate Pressure Assisted Flushing System has taken a predominant place in the industry and is the choice of many toilet manufacturers in four continents worldwide including American Standard, Corona, Gerber, HCG, Kohler, Lamosa, Mancesa, Mansfield, Orion, Peerless Pottery, St. Thomas Creations, Vitra, Vitromex, Vortens, Western, and Xinqi. Sloan Flushmate has not been without competition through the years. Many toilet manufacturers have come out with their own systems only to experience less than satisfactory results which resulted in the manufacturer discontinuing them and their support for their system, switching over to the Sloan Flushmate System. Sloan has managed to have their highly sucessful design become the “Industry Standard.” If you are purchasing a Pressure Assisted Toilet and it does not have the Sloan Flushmate System installed I would recommend strongly that you reconsider your choice. The proven track record of other manufacturers is non-existent.

The Sloan Flushmate System uses a pressure tank within the porcelain tank of the toilet so it looks like any other toilet. However, that is where the similarities end. The Flushmate Tank fills with water and has air under pressure above the water in the tank. When you flush the toilet the water is propelled out of the Flushmate tank under pressure and through the internal water passages of the toilet to the jet at the bottom of the bowl where it blasts out of the jet propelling the waste up through the trapway of the toilet. Once the tank finishes discharging in about 5 seconds the tank starts refilling for the next use. The fact that the Sloan Flushmate Pressure Assisted Toilet flushes in five seconds vs. 13 seconds for the gravity toilets gives it a much higher water flow rate but for a shorter duration. This provides the energy for a fast powerful bowl cleaning flush.

Sloan FlushMate IV

The Sloan FlushMate IV Pressure Assisted Toilet uses only 1 gallon of water to flush and exceeds WaterSense Certification Standards.

Flushmate Tank within the tank design

Flushmate Tank within the tank design

The new Sloan Flushmate IV exceeds the WaterSense High Efficiency Toilet standard by using only 1 gallon of water to flush a toilet. This should prove to be a big savings in water usage for many facilities such as colleges, hospitals, hotels, and light commercial buildings such as offices and restaurants. Claremont McKenna College, Claremont, CA, was able to reduce water usage at its facilities by 25% per month by using toilets with the Sloan Flushmate System. The school has eight research institutes and houses 900 students and approximately 250 other employees and faculty on campus. If you purchase a EPA WaterSense Certified toilet that uses the Sloan Flushmate IV Pressure Assisted Flushing System you may be eligible for rebates in many areas of the US and Canada. Check with your state, or provincial government as well as your local water supplier for availability as well as terms and conditions.

A Flushmate Toilet flushes over twice as fast than a gravity toilet.

A Flushmate Toilet flushes over twice as fast than a gravity toilet.

The Sloan Flushmate Pressure Assisted Toilets offer phenomenal flushing power that clears the bowl in one flush. Toilets equipped with the Sloan Flushmate System rarely clog and give the performance required in commercial applications. A Sloan Flushmate equipped toilet requires a minimum water pressure of 35 PSI. this makes it suitable for installation in most buildings including residential. A drawback to some people in a residential installation would be the noise of operation. Sloan has recently made some design changes which lower noise but to some users it may seem loud especially for those middle of the night uses. Another drawback for residential usage could be parts availability and pricing. If you are in an area that is predominantly residential parts may have to be ordered and take a day or two for delivery. The parts for the Sloan Flushmate while highly reliable tend to be a little higher than the costs of parts for a gravity flush toilet.

You can buy Sloan Flushmate Pressure Assisted Toilets at Lowes, Home Depot, and many plumbing supply houses.

If you have any questions or comments please leave them below and I’ll answer them for you.

Posted in Toilet Reviews Tagged with: ,
76 comments on “Sloan Flushmate Pressure Assisted Toilet Review
  1. Richie says:

    I purchased a flushmate toilet about 6 months and am already looking to replace it. It flushes so loud that it wakes up the people in the 3 bedrooms on the first floor of my house. I tried putting water in the top bowl but it only lasts for 1 flush. It does seem to deaden the sound somewhat. Any other suggestions? I can’t take it any longer…..

  2. Rick says:

    I have a Sloan Flushmate that was installed around 1999 to 2000.
    Has worked well but I seem to have a problem now.
    It VERY slowly seems to leak water into the bowl.
    Only noticable because this is at a cabin, that we are not there during the week.
    When we are gone, I turn off the well pump.
    We have air in the lines when we get back, from water going away.
    I have narrowed it down to this one toilet that seems to leak.
    Toilet works perfectly otherwise. It is a concern because we have a holding
    tank that we have to pay to have pumped when full.
    Can not waste water. Any suggestions????

    • Redwood says:

      Hi Rick,

      I would call the phone number that is on the label of the Flushmate Tank and they will guide you through the troubleshooting, and which parts you will need to make the repairs. You probably just need a replacement valve, in the older comments there is one from Sue, which I discussed some tools, which you will more than likely need for making the replacement. Also some of the “Older” Flushmate tanks have stainless steel end caps, these tanks were prone to having the plastic section of the tank start leaking due to the plastic cracking from the flexing between the rigid stainless steel end caps. If you have one of these and it has cracked then you will be replacing the whole tank. Calling Sloan at the phone number on the label is the best way to determine what parts you will need for the repairs, make sure you are home and able to supply all the numbers regarding your Flushmate tank and the toilet it is being used on.

      As for the losing water and getting air with the well system that also indicates a problem with the well either a leaking check valve, foot valve, or leaks in the line, which are allowing the water to drain down in the line to the well or, line in the well. The leaking toilet simply allows the air to enter the line similar to the finger over the straw.


  3. Dale says:

    Currently Kohler has two power assist model toilets. One uses 1.4 gallons and the other uses 1gallon. What are the advantages and disadvantages of each?

    • Redwood says:

      Hi Dale,
      Really there is little difference between the 1.4 GPF (Gallons Per Flush) and 1.0 GPF models other than water usage. The older water saving standard of 1.6 GPF in effect since the 1990’s is being replaced by the new WaterSense standard of 1.28 GPF for gravity flush, dual flush toilets with combined flush average of 1.28 GPF, and pressure assisted toilets with 1.0 GPF. This is currently being phased in through a combination rebate incentives from water providers, laws requiring replacement when a home is being sold, and eventually the elimination of 1.6 GPF toilets from the product lines. A lot was learned from the disastrous introduction of the 1.6 GPF toilets in the 90’s, where some of the worst flushing toilets ever made were sold for a few years before Toto demonstrated that properly engineered toilets didn’t really need a lot of water to flush well. This time around the WaterSense Toilets actually have to meet a minimum performance standard to qualify for certification. You can read about the WaterSense Standard at the EPA Website by clicking here.

      While the WaterSense Toilets may flush quite well the introduction will not be without some pain for some users. One of the problem areas which also cropped up with the 1.6 GPF Standard is “Line Carry” of solid waste in a Sewer line, this problem will be further exacerbated by further reductions in the total flow of water in a drain line. Simply said, the waste in a drain line is almost never carried completely to the city sewer lines in a single flush of a toilet, instead additional flushes or, other uses of water are needed to complete the carry of waste to the city sewers. The line carry in new cast iron pipe is roughly 2/3’s that of comparable sized plastic pipe, and older lines in poor condition such as badly rusted cast iron pipe, improperly pitched pipe, drain lines that have leaking joints such as vitrified clay pipe, cement pipe, and larger diameter pipes with long runs such as those in strip malls, will have problems especially when there is not a lot of additional water being used to wast the line clean. If the waste is not completely washed from the drain line eventually a solid slug may develop within the drain line which will block the pipe and require the services of a drain cleaner to snake or, high pressure water jet the drain line clean to restore flow.

      There is a study available on the Canadian Water and Wastewater Association website which was funded by Canada Mortgage and Housing Corporation (along with other funding partners) and was completed by Veritec Consulting, Inc., in Mississauga, Ontario, which documented drain line carry with different pipe types, sizes, pitches, and differing gallons per flush used. The PDF of the study can be downloaded by clicking here. As you can see the line carry will vary and your experience will vary also.

      I hope this answers your questions adequately,

  4. Gita says:

    water leaks from top of the tank. after flush run continously. what part do i need to change? how to do it?

    • Redwood says:

      Hi Gita,
      It sounds like your flush Cartridge has gone bad and requires replacement.
      Watch the video at this link to see “How To Test and Replace The Flush Cartridge.”

      Then visit this link “Where To Buy” to find out where to obtain replacement parts. You will need all of the information on the label of the Flushmate tank in order to know which parts are needed. If you have any difficulty in identifying the replacement part number or, the toilet is new enough that the parts are under warranty then you should call the number on the tank.

      Hope this helps,

  5. Alaska Toilet says:

    My flushmate toilet tank has begun to fill with water. The bowl seems to flush normally but the tank fills up with water and will overflow onto the floor if I don’t keep it scooped out! Any idea what is wrong with it?

    • Redwood says:

      Hi There Alaska Toilet,
      That’s an odd name. Hopefully we can keep you from having to do like the grizzly bears do do-do.
      I’d start with shutting off the angle stop valve supplying the toilet, which should be under the left corner of the toilet tank either coming out of the wall or floor. Once that has been done, dry out the tank as best as you can, then turn the water back on and see where the water is coming from. Once you have identified where the water is coming from you’ll then need to get the parts required to replace the leaking part. I would recommend either calling the phone number on the tank or, visiting the Flushmate Website to determine the parts needed, if your toilet is involved in the Flushmate III Recall, and information on obtaining the needed parts. Either way you will need the information of the label of the Flushmate Tank inside of the toilet tank and in some cases will need the model number and brand of the toilet it is installed on.

      If it is the flush cartridge make sure you stop back here for some help before you break all the tabs off trying to take the cartridge out using pliers.

      Hope this helps, and you can fix it soon,
      It’s getting a little cold to do like the bears do,

  6. JoeM says:

    When I built my new home in 1994, I opted for the Gerber/Flushmate toilets throughout. I was not disappointed in the quality of the flush! However, they have a couple of drawbacks that are often overlooked at first. These are: a) The flush is pretty loud and can be easily heard on the floor below and in the surrounding rooms. b) They scare small children when they are first introduced to them. They do get over it quickly. c) IF they are used a lot, then they require more and more expensive maintenance than other high quality toilets such as the Toto Supreme. Because of the noise problem, I moved two of them into my guesthouse where they are used infrequently. Those have required NO maintenance in over 12 years! On the other hand, our mainfloor toilet which is used maybe 15 times a day has had to be serviced with a $30 cartridge kit about every 5 years. Four cartridge changeouts so far. A Toto Supreme in another high usage bathroom has only had to have a flapper valve replaced in its 12 years on the job. Neither of these is a horrible reliability problem, but there IS a difference. I still love the Flushmate’s flush! But in fairness, the Toto Supreme units do the same good job in the flush task.

  7. JoshF says:

    These devices are good, but designed poorly by sloan. The flush cartridge is a $35 part you can only find online that only lasts 5 or 6 years. I had two of these toilets in my house when I bought it and both have now broken, several years apart. The part that sticks up to get pushed down, breaks in two where the spring is at, because the pillar of plastic is too small or cheaply made to snap in two. Both broke the exact same way. I’m replacing the 2nd one now like I did the first with a $100 toilet from menards.

  8. Josealberto Sanchghom says:

    Hola. I have a flushmate 504 and it flushes too slow, my hidroneumatic system is set at 40 psi.Should I increase presure settings? What’s the máximum presure the flushlmate will work safely? Thank you for helping.

    • Redwood says:

      Hi Jose,
      You have sufficient water pressure but you need to check the volume and the inlet screen, turn off the water supply and flush the toilet, then disconnect the supply line from the bottom of the toilet tank. Inspect the inlet screen inside the inlet to the toilet and remove the screen to clean if needed, next put the water supply line into a pail and turn on the water for 1/2 minute, you should have at least 1 gallon of water in the pail. Reconnect and turn the water on, letting the Flushmate tank fill. Test the flush.

      Next in the center of the Flushmate tank the flush cartridge has a white mushroom shaped actuator rod, there should be a slight clearance between the linkage and the top of the actuator rod, push the actuator rod down by hand and see if the toilet flushes. If it flushes by hand the linkage needs adjusting. you’ll probably need the manual to get it properly adjusted.

      Next check the air inducer, this is on the hose coming in at the top of the tank and has a cap with a hole in it. At the start of the refill cycle it should draw in air for a couple of seconds, you may be able to hear it or, you can place a little water on the top over the hole and see if the water is drawn in. If the air inducer isn’t drawing in air the unscrew the cap by hand and there is a rubber valve inside shaped like a duckbill. manipulate it by squeezing it and make sure the end opens, clean any debris out, put it back in and tighten the cap by hand. Do not over tighten.

      If any of these steps do not correct the weak flush then the flush valve needs replacement.

      Hope this helps,

  9. Mark Hobbs says:

    I have a Flushmate 504. I have water coming out of the lower assembly’s pressure relief hole. I just put a new lower supply piece in, same thing. Any ideas?

    • Redwood says:

      Hi Mark,
      What is your supplied water pressure? if it is 80 psi or over you need to install a pressure reducing valve and possibly a thermal expansion tank on your water heater,

  10. Dave Grover says:

    have a american stnd with flushmate mod number is m101526-f3 bought this 15 plus years ago. I have water leaking onto the floor. when I looked into the tank I can see an inch of water at the bottom. When I flushed I can see water squirting from the bottom of the pressurized tank this would be at the center water shoots straight toward the front of the toilet. This only occurs when you flush.
    How can I fix this?

    • Redwood says:

      Hi Dave,
      That leak may be a leaking discharge extension. I would however recommend that you call Sloan at 800-533-3450 as there is presently a safety recall on a number of their products. Your tank may be covered by this recall. If it isn’t though it is a discontinued unit and you’ll need to talk to them about parts availability or an upgrade.
      Hope this helps,

  11. Seth says:

    Hi, I have a 1929 standard toilet with a huge (but cracked and dripping) wall-mount reservoir tank and the water supply coming through a hole at the top of the tank (about 3.5 feet off the ground). Could I install the flushmate system and save the toilet, essentailly creating a tank-within-a tank?

    • Redwood says:

      Hi Seth,
      No the Flushmate toilets are specifically designed to use the Flushmate system. I’m afraid it is time for you to get a new toilet.

  12. Kim says:

    Is anyone having a problem with slightly discolored water discharging into the bowl from a Sloan Flushmate? I thought maybe I needed to clean up under the rim more often, but that didn’t work. I think the discolored water is coming from inside the Flushmate. Maybe some rusty parts inside the tank?
    Help please!

    • Redwood says:

      Hi Kim,
      There is nothing in the Sloan Flushmate tank that will cause discolored water. All of the components are plastic or, stainless steel. Your problem is either related to the plumbing in your house or, the condition of your water.

  13. Sally R says:

    HI, Redwood–

    I have a 503 series Flushmate and I heard intermittent dripping noises inside the tank. The first plumber said not to worry, dripping gets worse after flushing, right? It’s just condensation. A couple of months later I could hear the dripping whenever I went into that bathroom. Not super fast dripping, but still, dripping noises from inside the tank. Never saw any water where it shouldn’t be. Had a second plumber over to handle something else. He checked the toilet for me and said the cartridge was broken, but he didn’t have one on his truck. Told me where to buy and how to replace (the afternoon before the recent holiday). I replaced it but still hear steady dripping. Flushmate help line is constantly busy. Any ideas? Many thanks!

    • Redwood says:

      Hi Sally,
      I believe that your Flushmate may be included in a recall. Please call Sloan at 1-800-303-5123 between 8:00 a.m. and 10:00 p.m. ET, Monday through Friday and between 8:00 a.m. and 6:30 p.m. ET Saturday to check if it is included in the recall. This recall is safety related where the weld on the plastic pressure tank has failed and the exploding tank has broken the external tank causing injuries.

  14. Sally R says:

    You are correct, Redwood! After finally getting through (when I called previously their phone service was down), they are sending me a new tank and Flushmate unit. I am going to try to do the replacement myself, so please keep your fingers crossed. :-)

    And thanks for your help, because NO ONE needs an exploding toilet!

    • Redwood says:

      Hi Sally,
      I’m glad to hear that you won’t be in danger of a shrapnel surprise in your bathroom and your leak will be getting fixed too. I’m surprised your two plumbers were not aware of this recall.

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