Repair a leaky Kohler toilet with an Aquapiston canister flush valve

I’ll show you how to find and fix internal leaks on a Kohler toilet with a 3-inch Aquapiston canister flush valve.

Locate the leak 1:08
Part numbers for seals 2:32
Replace canister seal 2:38
Still leaking? Try this 5:49
Replace “flat seal” 7:28
Identify your Kohler toilet model 16:17
Find part numbers for your Kohler toilet 17:04
4-inch wrench for removing flush valve nut 23:25

Kohler Toilet Parts
Canister Seal p/n GP1059291 (fits 2” AND 3” flush canisters): https://amzn.to/2xLTdBw
Kohler “Flat Seal” p/n 1097686 (only fits 3” flush canister): https://amzn.to/2Jwh1jk
3” Toilet Canister Flush Valve Kit p/n 1083980 (Complete assembly): https://amzn.to/2LUCMLv

Permatex 22058 Dielectric Grease, 3 ounce tube: https://amzn.to/2Jw2p3t

Kohler Toilet Service Parts Book
online: http://kohler.dirxion.com/toiletserviceparts/Toilet-Service-Parts/1/
download pdf: https://pz3.comcom.com/digital/viewable/kfl/kfl.20180112052742.1009253.10-1099-1017.1017.pdf

4-inch wrench for removing the valve nut on two-piece Kohler toilets with 3-inch flush valves:
https://www.ebay.com/itm/233570313829

Heavy Duty 4-inch wrench (made from HDPE) for removing the valve nut on two-piece Kohler toilets with 3-inch flush valves:
https://www.ebay.com/itm/233346319537

2.5-inch wrench for removing the valve nut on most two-piece toilets with 2-inch flush valves. Especially useful for Kohler and Sterling toilets where the nut is recessed in the triangular gasket.
https://www.ebay.com/itm/233494390150

NEW wrench sizes available by popular request...
3.84-inch wrench for American Standard toilets with 3-inch flush valves.
3.5-inch wrench for Delta toilets with 3-inch flush valves.
https://www.ebay.com/itm/233627476190

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