“CL” is Critical Level < The point at which the fixture loses its protection to prevent a cross connection.
Sounds like an air break or air gap built into the faucet itsself.
There is probably a backflow preventor that is internal inside of the faucet that is made out of rubber that has failed or has debri holding it open.
I would suggest a full rebuild on the faucet, thorough inspection of the internals to resolve the problem.
Go to http://www.kohler.com and contact customer service to get the parts you need, they are probably under warranty if it is relatively new.
DUNBAR
Website Moderator
» This message has been edited by DUNBAR on 14 September 2005