Fix Leaking Kohler Simplice Faucet 

Glad I saw your hint about the Allen key and rubber mallet. Damage-free disassembly!

Excellent instructions with many helpful tips. I have *extremely* hard water and the handle was getting close to being frozen up. I'll make it a point to take it apart and descale it regularly from now on. The only thing that you didn't mention, although by watching closely you can see it in the video: the tightness of the big nut determines how easy or stiff the handle action will be. I tightened it too much the first time, and could barely move the handle. Taking it all apart I figured out that the big nut was the determining factor. A little bit of trial and error by slipping the handle on to test it let me find the sweet spot.

Glad that you mentioned the calcification and the difficulty of getting the faucet apart. Great idea to spray with vinegar and to soak the parts in vinegar to remove the calcification. After removing the screw, I couldn't get the handle off and thought I was missing a step, but no, it was the calcification that was acting as glue holding that in and all it needed was vinegar spray and a rubber mallet! Got it off...yay. Thanks for showing us that not everything goes according to plan.

This video was a great help. I had trouble removing the plastic collar piece. To help get a grip on it I wrapped duct tape around it, that helped the wrench grip the piece - then it came off easily.

It was really helpful to see how much force was needed to get that handle off. I probably would have wrecked the whole thing if I didn't see how you did it. Much appreciated!

Dead on perfect instructions. Thank you for sharing and for letting the rest of us learn from your process. The larger Allen wrench used to act as a wedge worked like a charm for me. I placed the larger Allen wrench tip at the back side of the handle and used my palm to strike the the handle. Thank you again!

Thank you brother...Amazon came today with the parts you said to order. I just put the laptop next to the sink and followed you word for word....works like a charm!!

Thanks for the very clear instructions! Your tip on how to remove the handle is priceless! I had a sense of how to replace the valve, but I was struggling with how to get the handle off without breaking it! And confirmation of the part number was also really helpful. Thanks!

Your tip on what to do if the handle is stuck worked great. We didn’t need the rubber mallet, as tapped with my hand and broke the calcium up. Also used Norwex Descaler to remove the calcium build up. Not as toxic as other descalers. Your tips were even better than the Kohler video on the same topic. Thank you!

You are a good teacher, glad to find your video, to solve my problem. That's what I needed to solve my problem. Thanks.

rubber mallet trick saved my life

You said the Allen set screw for the handle is 2.5mm; Kohler actually says 3/32" they are very close but maybe the reason why the allen screw was initially hard to engage is not calcification but that the 2.5 is a hair bigger than 3/32 and a very tight fit. But overall this was VERY helpful.

Make sure that you don't over tighten the 7/8" nut when reassembling. First clue that it is over tight will be that the handle is hard to move. I found that it was trial and error in how tight I turned it trying to recreate the resistance of the handle before taking it apart. Hope that this is helpful to others!

You mentioned there was a link to get the plastic cap which I also damaged getting it off?

Great video. Helped me a lot. You have to use correct hex wrench or you won't turn the nut. Thanks

Thanks for the demo !

Thank you so much!!! This is exactly what I needed

It’s really helpful. Thanks!

Great instructions, but use a thin wood skewer instead of Allen key to prevent damage when using the rubber mallet.

I have the same issue with this faucet. It was very hard to remove the collar/scutcheon. Its all marred and messed up. Were you able to find a new one to buy? As for the cartridge I am still not able to remove it since its set in there like glued in place. The 7/8' socket didn't fit properly so I tried the open wrench and still could turn that nut. I will get it out even if I have to saw it off. Just ordered the parts but couldn't find the finishing collar. Thank you!

Thanks a lot, saved me some time and money

Thank you for your video it was very helpful

I put some blue thread locker on the grub screw and the lock nut threads to seal them from water ingress. Makes servicing it next time painless.

Very much appreciate this video. Thanks

Thank you!

Is there a temp adjustment ring like a shower? Ours takes forever to get hot.

Thanks!

Thanks

what if my handle squeeks and is somewhat hard to turn. Is it because I have to replace that same part you replace? or it just needs some cleaning with the parts all out?

Do you still have the part number of the decorative ring? I broke mine to cause it was also tight

Did you find your replace cartridge at your local hardware store? I am going to have to order mine as no one had it. Cheers

Dude has a covid stash of scotch brites.

FYI. Kohler will replace any faucet part for free. Lifetime warranty. I even did it by chat at their website.

What size of set screw?

Thanks for great instructions. But be aware that if you call Kohler they will send you new parts for their faucets free of charge.

Wish i could get the bonnet unscrewed!!!