Hi,Im am new into sailing. I bought a 1984 Catalina 25 this weekend for $1500. There is no damage to the hull or anywhere else. The only thing wrong with this sailboat is that the main is torn and will need to be replaced and it needs a good cleaning. I want to replace all the hoses and elecrical wiring in the inside of the boat before I actually replace the mainsail and start sailing with it. Now my question is, where is the waste holding tank on this model bc I cant find it anywher. i found the freshwater tank ( which will need to be replaced bc its filthy) but I cant find the waste tank. Also I`m trying to find a place I can get an owners manual for this boat if anyone has any suggestions please let me know.Overall it is a great boat, all the wood is in good condition and so are all the upholsteries. I plan on learning how to sail efficientlly on the lake before I`m even going to attempt to go any place else. That will give me time to clean the boat up pretty well and get everything ready for the summer time.If anyone has any suggestions or comments feel free to E-mail me at: jasonbarnett86@yahoo.com