From my previous post on the subject you will be aware of my view of “heads”. In my opinion heads should be simple, idiot-proof and easy to maintain. The old “red bucket and chuckit” system favored by British pocket cruisers in the 70’s seemed to fit the bill. The composting head was an interesting development. Unfortunately, the composting head has been “knocked on the head” by the Admiral. So it’s back to square one.
The original Whitby’s was fitted with two manual toilets connected to a central holding tank located just aft of the galley and over the forward end of the fuel tank. The tank was heavily constructed of fiberglass with an aluminum lid. This system necessitated long hose runs and access to the tank for hose changing and inspection was difficult.
There are three operation modes for any heads.
1. Direct discharge
2. Discharge of treated waste
3. Retention of untreated waste onboard
I have no problem with method 1. at sea.
I prefer method 2. where permitted by law (i.e. outside of no discharge zones).
Method 3 is the most problematic as it involves;
a. Finding a pump out station.
b. Sailing outside coastal waters (3 to 9 miles depending) to dump as per 1.
My Plan, therefore, is to have the two heads operate on different systems. The forward head should be a simple manual system with a small holding tank. The aft head may be electric (yes, I know this breaks all my rules) connected to a “Lectra San” treatment system.