Maze,

My boat a Rocket 88 model, has a total of 5 through hulls: one for the head sink, one for the toilet raw water intake both of these are under the shower seat. One for holding tank discharge under the port seat outboard of the main cabin table, one for the galley sink drain that often has the ice box drain tee'd into it and one aft for the engine raw water intake.

My boat does not have a raw water foot pump, I understand why it would be tee'd into the engine raw water intake. For one the raw water intake for the engine has a strainer on it this would help keep debris out of you raw water sink pump. Secondly if tee'd into the sink drain you would just be recycling your waste water back through your foot pump as it would be picking up the water going out the sink drain.

I keep my raw water shut off when at the dock for two reasons, the first being my attempt to slow electrolisys as I am in salt water. the second would be to reduce any chance of flooding due to a raw water leak. In as much as you are in fresh water, I would not be concerned about leaving this valave open when aboard as electrolisys is less of a problem in fresh water and as for flooding, you can alway turn it off after your feet get wet when you are aboard. I would turn it off when you leave. My habit is to hang my ignition key from the through hull valve as this reminds me to shut it off when I leave and also assures the fact that I will not start the engine with the water off as I need to get the key off the through hull before starting.

You mention that your engine did get hot with the water turned off, I would recomend that you inspect your raw water impeller as they disintigrate in a hurry with no water to lubricate them.

Happy to have you aboard and I am glad are enjoying your boat, I suspect that it will be a long love affair as you are just starting to learn what a fantastic boat you have. I have had mine for three years now and have found she has far fewer bad habits many of my past loves.

Maze,
Tara has 7 below waterline thru hulls (not counting the depth and the water-wheel transponders):
1. Engine Inlet
2. Galley Sink Drain
3. Direct Overboard Head Discharge
4. Holding Tank Macerator Discharge
5. Head Sink Drain
6. Shower Drain
7. AC Inlet

Originally the foot pump was seawater, but I re-plumbed it to the fresh water manifold. Just a quick step on the pedal and a squirt of water to wash or rinse. Although Tara has over 100 gallons of freshwater in 4 tanks and has never run low, I still try to save water (old habit of a steam ship's chief engineer).

Also, I converted the head to fresh water by hanging a 5 gallon solar shower bag behind the door that is behind the thundermug. Connecting the shower bag hose to the head pump finishes the job. Now Nurse Judi can have "Blue Water" in the bowel and the scent of decaying sealife no longer wafts in the cabin. Refilling the bag is easy as unscrewing the bag fill cap, sticking the shower nozzle in the hole and filling. Throw in a piece of one of those blue water cakes and Voila! Fresh blue potty water with each flush.

Maze:

You will definitely want to check that your impeller is still fully intact, as noted in the earlier post.

If you find that pieces have broken off, they can end up in your heat exchanger and block water flow.

It sounds scary, but these are simple to check and fix.

Laura
S/V Miramar (hull 938)

[QUOTE=MazeRat7;3851]Thanks folks.

So that is what I've found. Since I still dont have my C36 Technical CD (how long does it take to get that after signing up for the 3 year) , I'm just guessing what is original and what was added by PO's.

Thanks for all the good advice folks, Everyday I learn a bit more about her systems.

BTW, did I mention she sails like a dream ?

Peace,
Maze[/QUOTE]

Maze,

If you will let me know when you signed up for 3 years I will check and see what happened to your CD.

Thanks,

Maze,

"4) Port Couch - Another really large under water line thru hull that is capped, no valve, adjacent to that. No clue what this would be for."

That would be for your overboard sewage direct discharge line.
Ye ole 1.5" Poo Pipe.
Not too common these days...

Maze,
If you are talking about the galley foot pump, I converted Tara's to a manual fresh water pump for the sink. After, of course, cleaning it out and flushing it with some bleach water.