Kohler has changed the design of its bidet so that only Kohler bidet faucets work properly with the bidet. The normal configuration of a bidet provides for the vacuum breaker to be mounted behind the transfer valve. Accordingly, I purchased a Grohe bidet faucet which matched the other Grohe faucets in my bathroom. My plumber discovered that the only way to make the faucet work on the bidet is to mount it incorrectly making it difficult to use. After writing to Kohler they provided the following:
"Kohler bidets are designed to use combination transfer valves/vacuum breakers, therefore locked into that type of faucet. It is not required to install a Kohler faucet, however it is recommended;. Kohler does not test our bidet with competitor's faucets. However, through additional inspection and research, we have discovered that the Grohe bidet faucets are not compatible with Kohler bidets."
Kohler has offered to sell me its faucet for 50% off. The price of the faucet that matches the other faucets is $2200. So it will cost me over $1, 000 for the Kohler faucet plus the cost of the Grohe faucet or almost $700 plus the cost of the plumber to uninstall the Grohe and reinstall the Kohler product.
Kohler should advise their dealers of this problem. I went to two large plumbing supply houses and neither one knew this. Let the consumer beware!!
Product or Service Mentioned: Kohler Faucet.