I have a wall mounted kitchen faucet. The hot water washer continuously deforms and requires replacement. I've had to replace the hot side three times in the last two months. I am using ACE No.00 washers that are recommended. The cold water side seems to hold up much better. They tell me there is no difference between the washers for the hot side and cold side, but I am wondering what the problem is. I checked the seat, it is smooth and in good shape. I have included a photo of the deformed washer. Has anyone run into this? Thanks in advance.
Some clarification, this is the washer under the faucet stem, held in place by a brass screw.
Does anyone know if the Hot water washer should be different material than the Cold side?