Evan, On the very top of the tank there will be the manufactures sticker. I think there may be a phone# on it, if not do the 411 search on the phone. If you cant find it, let me know and I'll pull my storage compartment out and try to get it. There should be a model # on it to make it a simple deal when you call them.
Stan

Did you guys ever get this done?

I redid my fresh water system last year and wanted to just replace all of the head stuff this winter. The center piece of the bowl on mine is rusty as well and I would like to replace that. How does the bowl come up. I'm assumming that I just remove the screws and lift it up???

Also, Where is the holding tank located? For some reason, I thought that it is under the footrest @ the helm?????

Its still on my list, I have not had the time to tackle this project. Let me know how it goes.

The bowl should come right out. You may need to cut around the edges to break the silicon bead. WEAR GLOVES! You will probably find a ton of mold as well. Take a spray bottle w/clorox and disinfect the entire area and rinse well. Ventilate the cabin when you do this. Remove the upper storage compartment next to the sink. After that you have all the access in the world. The holding tank is right under the the storage compartment. There is a label from the manufacturer in the event yours is corroded and most like is. The mnfg will ship you a new tank. Good luck!
Stan

Thanks Stan!!!!

That's the info that I was looking for. It must be the Cafe or TG that it's under the footrest....or I'm going crazy!!!!!

Anytime Craig. Since your under there you may want to change the sea water pump as well. Its the old style with the eccentric looking thing. One good thing is that alot of Cig's vendors attach thier labels with thier products. The alum holding tanks ususally corrode on the bottom where it sits on the platform. What I did was spaced the "L" brackets up 1/2" to prolong the life of it.