Mine has a vented loop that comes off the toilet and then goes to a Y-valve that feeds either the holding tank or the through-hull.
06-07-2012 06:23 AM
Re: plumbing Catalina 27
Your plans look well thought out. As far as your question regarding the need for a vented loop between the macerator pump and the thru-hull, I don't believw one is ncessary. Here is a diagram of a typical sanitation plumbing system courtesy of West Marine Advisor.
06-06-2012 06:06 PM
plumbing Catalina 27
I am replumbing my Catalina 27 1974. Including updating from a direct discharge head to a holding tank.
I drew out a plumbing plan and Any input would be highly appreciated.
Also one thing I could not figure out was, do I need a vented loop between the waste pump and the thru hull for overboard discharge?