[Hardlyworking]

Originally Posted by retiredguy123

Interesting. There is a sticker inside the tank that has the model numbers for the Kohler replacement parts and mine says the cannister is a "dual flush" item. My house was built in 2015, and I have seen a lot of houses built before and after that with identical toilets as mine. I guess you need to check to verify which type you have. I think the builder should explain to home buyers which type they have because, with a single flush handle, many people don't know they have a dual flush toilet.

It’s definitely a single flush. Uses 1.28 gpf.

Yours is a dual flush if it’s the 4407.

[metoo21]

Ours are model 4467 and are 1.28 gallon single flush.

And for those wondering, the Kohler site also listed this:
Notice to California Customers
WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov

[Bill14564]

I suspect the K4407 stamped into the tank is the design of the tank itself, not the flush mechanism.

If you have a black, hollow canister and a single-piece lever I believe that is officially a single-flush system. It works as you say, a quick release is about half the water in the tank and a longer release is the full tank, but it is not the official dual-flush mechanism.

The Kohler dual-flush mechanism has a two-part handle (offering two separate flushes) and a complicated, solid canister.

(at least according to the youtube DIY videos)

[dewilson58]

Another classic ToTV's thread.

[retiredguy123]

Originally Posted by Bill14564

I suspect the K4407 stamped into the tank is the design of the tank itself, not the flush mechanism.

If you have a black, hollow canister and a single-piece lever I believe that is officially a single-flush system. It works as you say, a quick release is about half the water in the tank and a longer release is the full tank, but it is not the official dual-flush mechanism.

The Kohler dual-flush mechanism has a two-part handle (offering two separate flushes) and a complicated, solid canister.

(at least according to the youtube DIY videos)

I don't know what you mean by an "official" dual-flush mechanism. My toilets have a Kohler sticker inside the tank that state that the replacement parts should be a "dual flush" mechanism, not a single flush mechanism. The handle is not a two part handle, but the toilet does function as a dual flush toilet. If you press the handle down and release it immediately, you get a light flush, but if you hold it down for a second or two, you get a heavy flush. I think that is the way it is designed to function, but they may have refined the design of later models to use a two part handle and a different canister. But, according to the 2014 Kohler document on my tank (and hundreds of others in The Villages), the toilet is a dual flush toilet.

[Bill14564]

Originally Posted by retiredguy123

I don't know what you mean by an "official" dual-flush mechanism. My toilets have a Kohler sticker inside the tank that state that the replacement parts should be a "dual flush" mechanism, not a single flush mechanism. The handle is not a two part handle, but the toilet does function as a dual flush toilet. If you press the handle down and release it immediately, you get a light flush, but if you hold it down for a second or two, you get a heavy flush. I think that is the way it is designed to function, but they may have refined the design of later models to use a two part handle and a different canister. But, according to the 2014 Kohler document on my tank (and hundreds of others in The Villages), the toilet is a dual flush toilet.

My 2014 sticker lists part numbers of replacement seals for both dual-flush and single-flush parts. I understood that to mean that if I had a dual-flush mechanism I chose those part numbers and if I had a single-flush mechanism I chose the other part numbers. Perhaps we have different stickers.

By "official" I mean the complicated, solid canister system sold as a dual-flush canister that works with either two buttons on the top of the tank or a two-piece handle.

Again, I agree that the mechanism with the hollow tube canister that I have works the way you describe. Maybe you are correct and the presence of a tube indicates a dual-flush system and it was modified in subsequent years to use the solid canister and two-piece handle.

[retiredguy123]

Originally Posted by Bill14564

My 2014 sticker lists part numbers of replacement seals for both dual-flush and single-flush parts. I understood that to mean that if I had a dual-flush mechanism I chose those part numbers and if I had a single-flush mechanism I chose the other part numbers. Perhaps we have different stickers.

By "official" I mean the complicated, solid canister system sold as a dual-flush canister that works with either two buttons on the top of the tank or a two-piece handle.

Again, I agree that the mechanism with the hollow tube canister that I have works the way you describe. Maybe you are correct and the presence of a tube indicates a dual-flush system and it was modified in subsequent years to use the solid canister and two-piece handle.

Agreed

[Byte1]

Originally Posted by dewilson58

Another classic ToTV's thread.

Is this related to the dog poop thread?

[Byte1]

Don't know much about "toilet tipping" but there was a time when some of the farm boys used to tip cows.

[Two Bills]

Another simple solution to save on water, is to put a house brick in tank.
(Recommend you take brick out to clear the aftermath of a Vindaloo.)