Hi,

whenever I use my kitchen sink spray hose, a foul odor similar to
rotten eggs comes out. This is not the case for the faucet that shares
the water line with the hose. The faucet and hose are both just 3
years old and good quality Kohler. I tried removing the spray head and
putting Chlorox into the hose, but no luck so far. We only use the
hose occasionally, every 2-3 days.
Any idea where this could come from and how to fix it?

Thanks,
blu