My son and I bought a 1994 Sunesta 220 last year and have been working on it. It's a great boat and was in pretty good shape but needing some TLC. We finished working on the outdrive, engine, electronics, and hull. The folks at Chaparral have been a lot of help, but - frankly - have limited information on boats this old. We are now looking at working on the freshwater and brown water systems but can't locate any information on how these systems were designed/configured and can't depend upon the current systems to guide us as, for example, the hosing for the freshwater system is not connected and we don't know what might be missing. Nor do we know how the brown water (toilet) system is supposed to be configured. We've looked for shop manuals used by boat repair shops to work on the boat but are unable to find any. Can anyone direct us to where we can find the manuals or provide us with information on the systems? Would be greatly appreciated.