HydroForce Adjustable Toilet Flapper, (HFL190)

One fine evening, while enjoying a nice beverage, and reviewing investments in the comfort of my estate... I detected the all too familiar sound of running water emanating from one of the water closets. Year upon year I struggle with cheap builder grade toilets and their leakiness. The offerings of so called “Big Box Stores” (BBS) are ludicrous in price, and variety, leaving me unsatisfied and more often than not, trying new expressions through combinations of colorful language. Oh yes, I have employed most all the replacement accessories from the likes of the orange, and the blue BBS. Enough I say! I’ve completely had it! I will replace the entire valve assembly with modern technology, namely Toto’s interstellar looking replacement valve to the tune of 35.00 US, or more. While procuring payment I thought, shall I give another flapper a try? Surely a better flapper exists now, better than the Fluidmaster, better than the Korkey, and much better than the overseas outsourced dismal molded rubber rubbish pretending to be a toilet flapper. A quick Amazon search revealed something new, something blue, something unique and fresh! Could this be the answer to my Toto 1.6 GPF problems? The “Next” by Danco HFL190 HydroForce Premium Adjustable Flapper at 8+ US. I bought it and the damned thing works! No more leaks! After years of struggle. Better buy ‘em quick boys because I’m going to buy them all!

This flapper is much more pliable than the 6 year old Fluidmaster flapper that leaked. I slowly poured a cup of white vinegar over the flush valve, filled the tank and let the solution work for a couple of hours. I manually worked the valve to displace any lime/dirt build up and flushed the tank. Before the tank refilled I slipped the old flapper off and slipped on the HydroForce Premium Adjustable Flapper. I had placed the green piece into the hole on the flapper before installing it. I attached the chain to the flush arm and when the tank filled I flushed again. I replaced the tank lid and returned about 20 minutes later to check the level of water in the tank. I saw there was no change in the level of water. The flapper is doing its job and the de-limed flush valve is working as it should. I haven't heard any water leak (glub-glub) or spontaneous flushing to date. As I never put anything in the tank but water I expect this new flapper to last at least through the 5 year warranty period. I recommend it but will keep you posted if it should fail. By the way the toilet was a generic 'trade' model made in 1989. The new flapper fit just fine.

HFL190 isn't different from its counterparts you can find in any housewares store at the same price. The only feature making it unique and giving it unbeatable advantage is that small float (the green piece on the Amazon's picture). The picture is not what it should be, since it doesn't explain the principle of the flapper operation. In fact, the float is placed on the chain at a certain level, which allows the flapper to adjust the amount of flushed water preventing its waste (adjustment of tank fill alone is not enough, since the tank fill level maintains the water pressure required to flush effectively). Installed with HC660 (a fill valve from the same manufacturer), HFL190 can really save water besides performing its duty as a flapper. After using one set for a couple of months, I equipped all toilets in my home with HC660/HFL190 combination. The price of both (HC660 and HFL190) makes a try painful.You may read comments about incompatibility of HFL190 and certain tank types (I have TOTO already mentioned in the reviews, and had no problems when installing and using HFL190 in it). Most likely, the problems may be caused not by tanks themselves, which compatibility with flappers can be characterized by flush opening sizes and shapes (which are standardized as well as flappers), but rather by how a flapper is affixed to the overflow tube. Such incompatibility can be avoided, again, by using a combination of HFL190 and HC660.

Tried replacing old rubber flapper with a new flapper. Still had leaks. After a couple months of fiddling, the problem still wasn't solved. Needed a more supple material for a good seal.This one did the job. No leaks since. Bought another one for the other toilet. Since it's silicone, should last forever.*** update 12/20/2104 (~3 years after purchase rating reduced from 5 stars to 3)Should have known it was too good to last. The "arms" that hold the flapper in place appear to have stretched and the plug no longer seats squarely when it drops back into place. As a result, I'm back to the same problem (constantly-running toilet) but for a slightly different reason.This product still has the advantage of being more pliable than the rubber flappers, hence it seals better. But like the rubber flappers, they're designed to fail so you have to buy a new one every couple of years. We can put a man on the moon, but we can't design a toilet flapper that lasts 10 years? Give me a break.

I have used many different kinds of stoppers for my toilets and all had begun to leak within a month after I installed them. Even after lightly sanding the flushball seat with a fine grade Steele wool and confirming that the seat is free from burs, nicks or uneven spots. I really was hoping to not have to replace the ballseat because this requires removing the fill tank. This would be quite a job because I have 4 toilets. The HydroForce was my last chance and boy was I hoping it would work. I have had these installed for a few months now and not one of them has leaked! I wish that I had know of the HydroForce sooner, I could have saved a lot of money in wasted water and useless toilet ball stopper purchases . Thanks HYDROFORCE!

Exactly as shown. Great product. Great fast service.

These are on the expensive side but worth it as they’ve always worked for me. I’m curious to see the longevity since they’re not the classic rubber which melts and decays over time / these are silicone so perhaps they’ll last long?

I have been searching for a flapper that would work on my toilet. This little gem did the job. Easy to install, worked the first time and every time since. Very happy thank you.

Does not have long enough Flush .

Fantastic product! The only flap that finally made the toilet stop leaking! Easy to install. We’ll definitely buy more to keep on hand for the other toilets in the house!