Fluidmaster
Fluidmaster Overview
The generated data is based on reviews and questionnaires provided by PissedConsumer.com users.
Fluidmaster has a 2.6 star rating from 22 reviews with mostly neutral to negative sentiment; reviewers cite mixed experiences and frequent product failures.
Key Takeaways for Future Customers
- Check Fluidmaster reviews for recurring part failures before buying replacement valves or duo-flush kits.
- Expect reasonable availability and easy install instructions but verify compatibility with your toilet model.
- Contact customer service for warranty or refund requests, as many customers sought refunds or replacements.
Negative Feedback / Risk Areas
- Reports of poor quality, seized supply lines, leaking or failing 400A valves, and cables breaking on duo-flush units.
- Complaints about warranty handling, refunds, and company policy when products cause damage or can't be installed.
- Some users report misleading "universal" kits and inconsistent customer service responses.
Positive Feedback
Many reviewers praise availability, easy install instructions, and instances of helpful customer service and warranty replacements for failed units.
The generated data is based on reviews and questionnaires provided by PissedConsumer.com users.
Fluidmaster has a 2.6 star rating from 22 reviews with mostly neutral to negative sentiment; reviewers cite mixed experiences and frequent product failures.
Key Takeaways for Future Customers
- Check Fluidmaster reviews for recurring part failures before buying replacement valves or duo-flush kits.
- Expect reasonable availability and easy install instructions but verify compatibility with your toilet model.
- Contact customer service for warranty or refund requests, as many customers sought refunds or replacements.
Negative Feedback / Risk Areas
- Reports of poor quality, seized supply lines, leaking or failing 400A valves, and cables breaking on duo-flush units.
- Complaints about warranty handling, refunds, and company policy when products cause damage or can't be installed.
- Some users report misleading "universal" kits and inconsistent customer service responses.
Positive Feedback
Many reviewers praise availability, easy install instructions, and instances of helpful customer service and warranty replacements for failed units.
Media from reviews





This review is from a real person who provided valid contact information and hasn't been caught misusing, spamming or abusing our website. Check our FAQ
Verified Reviewer |Product caused me $2500 in repair costs
- - Used a click twist and seal water line for the kitchen sink.
- - It seized on the faucet and required removing the kitchen countertop to replace.
I used one of their 'click twist and seal' water lines for my kitchen sink. Less than 3 months later, when I tried to remove it, it had seized on the faucet, and I had to have my entire kitchen countertop removed to get it replaced. AVOID
- Deffective products
Preferred solution: technician to come out and remove the water line for me.
User's recommendation: avoid their water lines at a minimum, they will sieze on your fixtures
This review is from a real person who provided valid contact information and hasn't been caught misusing, spamming or abusing our website. Check our FAQ
Verified Reviewer |Not Happy With Fluidmaster Fill Valves Fitted a Fluidmaster Bottom-Entry Brass Shank Fill Valve 1/2" to my cistern about 6 months ago and it was never right because it would take at least 5 to 6 minut
Nothing at all, they have not offered to replace it or offered a refund. Not happy at all, to say the least!
- Might take an hour to fill your cistern
Preferred solution: Full refund
User's recommendation: Do Not Purchase This Device From Fluidmaster
Need a toilet fill valve recommendation for my situation
Not an intuitive interface. I don't like being recorded, and my problem was not solved. And on top of that, I have to write this extra sentence in order to go forward in submitting my comment.
This review is from a real person who provided valid contact information and hasn't been caught misusing, spamming or abusing our website. Check our FAQ
Verified Reviewer |Change my email address
I am still trying to figure out how to change my email address and password so that I can create a new account.
- Toilet stays much cleaner
Preferred solution: I would like to create a new account using a different email address and password.
User's recommendation: Don't forget to write down your email address and password and you won't have this problem.
This review is from a real person who provided valid contact information and hasn't been caught misusing, spamming or abusing our website. Check our FAQ
Verified Reviewer |I changed my email address.
I was told that I would have to click on "shop" and then create a new account using my newest email address. That's exactly what I did. Thank you!
Excellent service, especially by the customer representative that I talk to
- - The filter tube on the aqua piston kept coming out, spraying water under the lid and on the walls and floor, and the rep fixed it.
The filter tube going into the aqua piston kept coming out of the top of the aqua piston, spraying water underneath the lid and spraying on the walls and the floor and it wouldnt stay in place. The customer service representative. I talked to knew exactly what I was talking about knew my exact problem and the exact fix rectified the problem excellent employee
User's recommendation: Excellent customer service representative that I dealt was
They sell a universal kit but it's not universal. Very disappointed in quality and in the fact that I had to go back to buy the parts needed that were not universal.
- - They say not to waste money and to look up lawsuits.
- - The universal packs are not universal.
- - They had to buy parts that were not universal.
Don't waste your money and look up lawsuits. They really need to do a better job of being honest and forth coming.
There labeled universal packs are not universal. Had to go back and buy the parts that were not universal.
User's recommendation: Avoid them
This review is from a real person who provided valid contact information and hasn't been caught misusing, spamming or abusing our website. Check our FAQ
Verified Reviewer540 3 flapper
The white gasket on the flapper formed bubbles and will not seal properly. Everything else works fine.
That model has a 10-year warranty.
Please send a new 540 3 flapper. Thank you.
Preferred solution: Replacement part
User's recommendation: Sounds like a common problem. Hopefully it has been resolved
False Advertising
- - The flusher fit a Mansfield toilet but locked the flapper open.
- - Water kept draining from the tank; I paid extra shipping hoping for a fix.
I bought a product that said it worked on my toilet but they clearly never even tried it. I have a mansfield toilet and they said the new flusher fit and while it did actually fit it also LOCKED THE FLAPPER OPEN.
Flushing a toilet and the water continuing to drain from the tank into the toilet IS NOT HOW A TOILET IS SUPPOSED TO FUNCTION!
Just messed up. I paid extra for shipping too so i could use the hall toilet again w/o getting my hand wet reaching in the tank to flush it.
It's so badly designed I honestly considered just designing something and 3d printing it.
Pathetic.
- Lie on their packaging
Preferred solution: Full refund
User's recommendation: Don't believe what they tell you. If it's "Universal fit" it probably isn't.
This review is from a real person who provided valid contact information and hasn't been caught misusing, spamming or abusing our website. Check our FAQ
Verified ReviewerPurchased new valve, was missing rubber seal under csp
Bought a toilet float that did not have a seal under the cap. Customer service didnt believe me.
Over the last 5 years Ive purchased 6-7 of these valves. 3 were bad.
This was the worst.
- Availability
- Poor quality
Preferred solution: Apology
User's recommendation: Find different brand
This review is from a real person who provided valid contact information and hasn't been caught misusing, spamming or abusing our website. Check our FAQ
Verified Reviewer |This person supports our platform.
Supporter |Refusal to Refund Product That Cannot be Used
- - Couldn't install; assembly differed from instructions.
- - No refund; site says refunds via technical support; no resolution yet.
I have heard nothing from Fluidmaster to-date.
I called their Tech Support and talked to Jesus M. He asked that I send a picture of the inside of my toilet so he could advise how I could install this. I received an email from him asking a technical question about the inside of my toilet. I explained that I had no idea what he was referring to and would like a refund.
He told me there is no refund on this product.
However, their website states refunds are via their "technical support". Their handling of me as a customer and consumer is atrocious and is simply a runaround.
To-date FluidMaster has not offered any resolution to this issue.
Preferred solution: Full refund
User's recommendation: DO NOT BUY PRODUCTS FROM FLUDMASTER
Happiness
- - He bought a Fluid Master Fill Valve to save money.
- - Instructions were the best he ever used.
- - He was pleased with Fluid Master and himself.
My husband, 75, has never fixed anything. However, to save money he bought a Fluid Master Fill Valve. After he finished, no cursing needed, he told me they were the best instructions he ever used, and was totally pleased with Fluid Master and himself.
User's recommendation: Use this product, you won't be sorry.
Fill valve failure
Stem broke that hold Flush seal
Poor design on kit 540AK
- - The Toiled Flush Valve Kit 540AK leaks water between tower sections.
- - Raising the outer tower causes ghost flushing and a sealer fixes it.
I'm complaining about the Toiled Flush Valve Kit 540AK , the adjustable tower does not stop water from leaking in-between the 2 sections so when you raise the outer tower to allow a higher water level you get Ghost flushing's due to water leaking past the towers.
To fix it you have to put a sealer so no water can take that path.
Why not have a twist seal between towers so you can pull up to desired level, twist the outer tower to seal any water bypassing between them ?
This is what I had to do to fix my issue with this kit. .
Rick
- Easy install
- Poor design
Preferred solution: Let the company propose a solution
User's recommendation: buy the one peace tower, kit , cut it off
Old valve started hissing and leaking past the valve, New valve installed is worse than the old one.
- - Replaced FM 400A due to water leaking past the valve.
- - New 400A shows more water bypassing the valve.
- - Issue has been online since 2013.
I replaced a FM 400A because water was leaking past the valve. I bought a new 400A and the amount of water bypassing the valve is significantly more. I checked online and this has been an issue since 2013.
User's recommendation: Boycot Fluidmaster until they get their quality back to what it was and should be.
Part# 703-A5B
toilet continually runs, must lift part to stop filling
Preferred solution: Let the company propose a solution
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