Good Morning,
I'm trying to repair a leaking, broken valve stem on the pictured Kohler product. I can't seem to remove the conical collar that surrounds the offending mechanism, and have tried turning it and prying it up. Do I have to get at it from underneath the sink? What's a good product to remove the "ick" once I have it repaired?

Thanks,
George
I'm trying to repair a leaking, broken valve stem on the pictured Kohler product. I can't seem to remove the conical collar that surrounds the offending mechanism, and have tried turning it and prying it up. Do I have to get at it from underneath the sink? What's a good product to remove the "ick" once I have it repaired?
Thanks,
George