How old is this faucet?
I would call Pfister, show them the photos, tell them that other faucets in the house are clean...maybe they will send you a new faucet.
However, even if they don't, replace the faucet. I don't think you want to drink this water, cook with this water or wash dishes with this water,
Another thing you can do is put an under sink water filter on the cold supply line, then check the filter and replace when needed. Highly recommended.
I would call Pfister, show them the photos, tell them that other faucets in the house are clean...maybe they will send you a new faucet.
However, even if they don't, replace the faucet. I don't think you want to drink this water, cook with this water or wash dishes with this water,
Another thing you can do is put an under sink water filter on the cold supply line, then check the filter and replace when needed. Highly recommended.