The majority of the freshwater system hoses on my 2002 Catalina 310 are brittle and I a bit concerned about mold. They are original equipment. I got a quote to have the yard replace all the hose runs. However, I am wondering if it might be an "easy enough" job to do myself to save some money. I would need to replace all the hoses from the freshwater tank back to the main pump under the sink, the hoses to the water heater and to the sink and freshwater flush system for the toilet (a previous owner add on). If anyone else has done this themselves, any war stories, suggestions or advice would be greatly appreciated! Thanks in advance.