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   » » BarcodeComment: Leak-these-kohler-much-barcode-balancing-2747185489

High failure rate, October 19, 2010

Kohler GP77759 Mixer Cap for Pressure Balance Valve
The Kohler Coralais shower valves are garbage. They will leak in 5-6 years guaranteed. It does not matter how often you use them either. I have two bathrooms with these units and one was used at least three times as much as the other and they both started leaking within 3 months of each other. This item does not usually solve the leak. You also need to get the GP500520 Kohler Pressure Balancing Unit which is another $40. You can try to get o-ring kits and replace every single part in it and it will still leak. It is outrageous how much these two parts cost.

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The Kohler Coralais shower valves are garbage. They will leak in 5-6 years guaranteed. It does not matter how often you use them either. I have two bathrooms with these units and one was used at least three times as much as the other and they both started leaking within 3 months of each other. This item does not usually solve the leak. You also need to get the GP500520 Kohler Pressure Balancing Unit which is another $40. You can try to get o-ring kits and replace every single part in it and it will still leak. It is outrageous how much these two parts cost.
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I hate Kohler products, but since I didn't want to rip the the shower out I had to fix the fixture the house came with. Five showers a day for ten years isn't bad for a fixture. Don't bother calling the Kohler help-line, Bambi will just tell you to replace both the valve and the proportioner. I ordered the valve first and that stopped the drip. After a few minutes of thinking things out I installed it 180 degrees backwards which caused the hot to come on first instead of the cold. This seems to be the only way you can screw it up. The screws that attached the faceplate were difficult to screw in as if the threads weren't fully tapped. I used plumbers grease to help preserve the O-Rings and so far the drip is gone. It was much easier to buy it from Amazon than put up with the dumb looks I always get at Lowe's. If I was remodeling I would install a Delta or Moen fixture; my Kohler kitchen faucet only lasted about five years. I give it five stars because it was a cheap and easy fix.
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As I said in a review of the Kohler Pressure Balancing Unit, this self-install saved me big bucks and was easy. I now have a dripless faucet and money saved in plumbing expenses.
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