Model # GP1229656

Internet #205426423

Store SKU #1000709999

KOHLER AquaPiston Repair Kit for Flush Valve
0885612339225

KOHLER

AquaPiston Repair Kit for Flush Valve

$840 /each
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Product Overview

Insist on KOHLER genuine parts to assure you’re provided with the quality one would expect. This AquaPistion repair kit fits most single flush canister valves. It comes with a one year limited warranty.

  • Genuine KOHLER part
  • Canister flush valve repair kit (single flush)
  • Includes center guide, cap and chain
  • Replaces black cap
  • For seal replacement, part number GP1059291

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Customer Questions & Answers

When I flush the aqua piston comes up and hits the filling tube and pulls the disc off resulting in the toilet running.

Any ideas?
Asked by: Dj
The top knob (that is yellow here and black on early designs) is attached permanently to the black shaft on early designs with four super thin struts that are so fragile that the top knob will snap off very easily and the knob will float around in the water in the tank as a loose piece. This then allows the piston to fly up and hit the porcelain lid to the tank during a flush. This motion causes the handle to remain in the depressed position which causes the water to run continuously, wasting huge amounts of water until you manually return the handle to its normal position by pushing it up. You can either buy this part and install it or find a creative way to reattach the detached knob to the top of the shaft, which was my solution to this problem. My shaft had the detached black knob that was laying loose in the tank. My personal solution was to use a drywall screw, a piece of half inch dowel about two inches long and some epoxy glue. 1) Gently ream out the hole in the top of the knob just enough to allow a 2 inch drywall screw enough clearance to slide in, a 5/16 drill bit did the trick. DO NOT drill out the flat bottom of the hole. 2) Drill a 1/8 inch hole one inch deep into one end of the piece of two inch long dowel. 3) Screw the drywall screw manually into the hole to the bottom and place the remaining inch of screw into the chuck of an electric drill. This will allow you to spin the dowel against some 120 grit sandpaper and taper the end of the rod since the hole in the black plastic piston shaft is a tapered hole, not a straight hole. Sand until you have a nice tapered end with a snug fit when you twist the rod into the hole under careful pressure. 4) Now create the final repair assembly by removing the screw from the rod and from the chuck, and this time use the screw to hold the knob securely to the rod when you screw it back in. You should be able to grab the knob and twist it clockwise while pushing it down into the hole. 5) Once you are satisfied with the fit, you can be sure the hole is dry and then place a few drops of your epoxy glue mix onto the tapered wooden area of the dowel and twist it very firmly into the hole at a time when no one will be using the toilet for the several hours that it will take the epoxy to dry. 6) Voila, when dry the handle will pop right back up after a flush, just the way it used to. Do not test it for several hours--after the glue is thoroughly dry! Worked like a charm, saved a few bucks. There are lots of aquapiston videos on youtube to give you an idea how the mechanism works, the white hose does not have to go into the top of the knob, and often flops out with no harm done.
Answered by: aquapistola
Date published: 2017-06-01

how do I install the yellow washer under the canister...???

how do I install the yellow washer under the canister...???
Asked by: charlie
go to youtube.com and use keywords aquapiston flush repair
Answered by: aquapistola
Date published: 2017-04-17

Is there a manual that shows how to remove the Aqua Flush piston in Toilet?

My Kohler Aqua Piston flush keeps leaking/ running after a flush. Not sure how to disassemble it to check the seal? Don't want to break it.
Asked by: Jerry1951
Youtube videos are much better than manuals.
Answered by: Tom
Date published: 2017-01-18

Toilet contiues to fill the tank and send water into the overflow even though float is submerged. How do I fix this?

I have adjusted the float, but as mentioned above the float actually goes under water, but doesn't serve to shut off water to the tank.
Asked by: Rocky
The float shouldn't be "submerged" - that's why it's called a "float" it should be floating. Is it caught on the side of the tank? Does the height need to be adjusted to let it move up higher? The float should be at the same level as the top of your overflow. If it's lower, your tank will keep trying to fill.
Answered by: LLStaud
Date published: 2015-10-13
  • y_2017, m_7, d_19, h_11CST
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Customer Reviews

AquaPiston Repair Kit for Flush Valve is rated 4.5 out of 5 by 43.
Rated 5 out of 5 by from Easy to install. An upgrade to the old one. ... Easy to install. An upgrade to the old one.
Date published: 2017-01-24
Rated 4 out of 5 by from DID NOT NEED EVERYTHING THE KIT PROVIDED. ALL I NEEDED WAS THE TOP ASSEMBLY WHICH HOLDS THE FILL ... DID NOT NEED EVERYTHING THE KIT PROVIDED. ALL I NEEDED WAS THE TOP ASSEMBLY WHICH HOLDS THE FILL TUBE AND THE GASKET. THOUGHT MY PROBLEM WAS JUST THE GASKET BUT WHEN I ATTACHED IT SAW THAT THE ORIGINAL PART WAS CRACKED. THIS TOP IS MUCH BETTER THAN THE ORIGINAL. ALSO IT COMES WITH A GASKET. HAD TO WAIT OVER 4 WEEKS FOR THE GASKET WHICH COST LESS THAN $2. NOT WORTH THE WAIT.
Date published: 2017-03-21
Rated 5 out of 5 by from The part was used to replace an identical part that... The part was used to replace an identical part that had broken. The instructions for removal and replacement were excellent and the total job took less than three minutes with no tools except my hands to complete. This is an excellent replacement kit.
Date published: 2017-03-14
Rated 4 out of 5 by from Was easy to install also checked YouTube and it mentioned... Was easy to install also checked YouTube and it mentioned to turn the yellow piece. This is my 4th one I had to buy because it breaks or get stuck
Date published: 2017-03-25
Rated 5 out of 5 by from I'm a 70 yr old single woman who knows nothing... I'm a 70 yr old single woman who knows nothing about home repairs and after watching a YouTube video, found this very easy to install in no time.
Date published: 2017-04-07
Rated 5 out of 5 by from The hose kept coming off of my original Kohler toilet. This has a much more sturdy connection and... The hose kept coming off of my original Kohler toilet. This has a much more sturdy connection and does not seem likely to fail for many years.
Date published: 2017-03-28
Rated 5 out of 5 by from Ordered online and picked up in store next day (was in inventory there). Installed easily and is... Ordered online and picked up in store next day (was in inventory there). Installed easily and is an improved design over original in my view.
Date published: 2017-05-04
Rated 5 out of 5 by from The flush valve replacement took 10 seconds. It was simple... The flush valve replacement took 10 seconds. It was simple and easy and I thought I'd have to replace the entire calendar.
Date published: 2017-02-28
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