Need Help With Head Setup!

Columbia34 · Post by **Columbia34** » Mon Mar 05, 2007 6:26 pm

Here is a Diagram of what we have in our boat, when we bought the boat the head had been take apart for cleaning now i need to get it back together, so i am looking for everyones help on how the picture shows what i have of what it should look like but i have now under the sink pictures to show where the hoses go. i should mention there are 2 thru hulls under the sink a large 1" and a 1/2" one. Let me know what you think and thanks in advance.

Hirilondë · Post by **Hirilondë** » Mon Mar 05, 2007 8:16 pm

I filled in 2 of your diagrams:

I can only guess that the pump is for emptying a grey water sump. Does it really have a screw on garden hose fitting on one end? Or is it a hose fitting for 1" hose? Many macerator pumps use 1 1/2" hose in from the tank, then 1" hose out to the seacock. What you show is confusing to me.

I would need to see a picture of the holding tank. But it seems strange that you have 2 different diameter elbows. 1 1/2" is standard for all black water hose. Is the diagram of the top of the tank?

Columbia34 · Post by **Columbia34** » Mon Mar 05, 2007 9:01 pm

yes the diagram is a view from the top, the only holding tank is the on the toilet sits right on? in my second picture the tank is mounted right under the toilet, the toilet sits right on the tank center over the 4.5" hole.

The pump is a bright neon green color that you put a 1' long metal handle in to pump. from the 1" thru hull it goes to one side of the pump then out the other side is a garden hose fitting i found a hose with a matching fitting that goes all the way back to under the cockpit somewhere? i admit is did not crawl below the cockpit to look where.

I also forgot to mention that there is a 1.5" hose the comes down from a deck pump put fitting to under the sink as well.

the 1/2" thru hull has a "T" fitting on it one goes to the sink drain and then one goes to a 3' hose with a plug in the end. Sorry for being kinda of vage on this but i am lost and the boat is 2 hours away. the hose going to the bilge does not make sense why?

Hirilondë · Post by **Hirilondë** » Tue Mar 06, 2007 1:01 am

Which direction does the pump work in? I'm beginning to think your reply may be academic to my reply, as it appears to be something you may want to get rid of. It doesn't come across as a very safe set up for what-ever it does. It is common to have a manual discharge pump for a holding tank in the head, and under the sink is a common location. But a garden hose and the scenic route you describe it takes would seem to rule it out as its function.

Now I see the tank. Often holding tanks have a clean out fitting. That is what I suspect your 4 1/2" hole is about. Is there a cap of some sort that closes it off? The 1 1/2" hose from your deck pump out fitting must go to the 1 1/2" elbow in the tank. But to be sure you need to see which of the 2 elbows has a dip tube and which just goes into the tank. One of them is for pump out (dip tube one)and the other is for discharging the toilet into the tank from the wye valve. Some how the 2 1/4" one needs to be reduced to a hose fitting for 1 1/2" hose. The 2 small holes in the tank are likely for vents, but I don't understand why they are different diameters.

I hope this info helps. As you sort through this abandoned project you inherited please feel free to ask more specific question. I will likely need more detailed info regarding these questions to even offer guesses though. You might want to read through this thread http://www.triton381.com/forum/viewtopic.php?t=2336 . It includes some diagrams and several people commenting on system design.