I have a LaCimbali M21 Junior. I see the following happen when I turn on the machine. I believe this is a anti-suction valve. I do not think I can find the exact same version (maybe a generic). I am not able to get water or steam out, but I get water out of the group head.

Do I need to replace the anti-suction valve and where can I get the original part? I did find this one but it does not look like what I have.. http://www.cafeparts.com/productDetail1 ... emID=68692