I purchased a 2007 Contessa last year and had it winterized this winter for the first time. I am starting to get it ready for this spring and I want to make sure I know where all the water filters are as I'm wanting to change them all. I know there is one under the sink that feeds the drinking water spigot. I also see what looks like a water filter near the water pump that feeds the ice maker. Is there another onboard water filter that was factory installed? I've looked through the access door into the wet bay and do not see any additional filters. Please let me know your opinions on this. Thank you!