Hi Dwight,
No doubt after build changes. I don't know where the holding tank was
in a 35 Mk II, or if it even had one. Back in the day, they probably just
dumped it overboard. I installed a 25 gallon Kracor tank, transverse,
under the vee berth. With the previously mentioned changes, it has served
me quite well. It doesn't have to be super full to cause a problem, just
above the bowl and on it's side (heeled).
Gary
S/v Expresso
'75 C&C 35 Mk II
On Fri, Sep 14, 2012 at 6:17 PM, dwight veinot <[email protected]
> wrote:
> ** ** ** ** ** ** **
>
> Hi Gary****
>
> ** **
>
> I got the same model boat as you and I don’t think my boat was made like
> yours as far as the holding tank goes but my boat does have a very small
> holding tank and I don’t see how it could flow backwards unless it was
> super full maybe…what I do know is that water flows downhill and I think
> the guys at C&C must have known that too…is it their original designs that
> are causing this problem for folks or some after build changes****
>
> ** **
>
> Dwight Veinot****
>
> C&C 35 MKII, Alianna****
>
> Head of St. Margaret's Bay, NS****
> ------------------------------
>
> *From:* [email protected] [mailto:
> [email protected]] *On Behalf Of *Gary Russell
> *Sent:* September 14, 2012 12:34 PM
> *To:* **[email protected]
> **
> *Subject:* Re: Stus-List Head Trouble
> ****
>
> ** **
>
> I don't have a diagram, but I can try to work something up. It may take
> me a little while though.****
>
> ****
>
> Perhaps a better description will work. Let's start at the sea water
> inlet and work through the system.****
>
> ****
>
> 1. Raw water inlet: The raw water input comes from the seacock and goes
> up through a "tee" to the sink drain. This tee is for the line that goes
> to the hand pump inlet on the head (Peggy Hall suggestion). The reason for
> this is so that you can close the raw water seacock, fill the sink with
> fresh water and flush the fresh water throught the head. This is to remove
> the micro-organisms from the head plumbing that tend to stink really bad if
> left in the hoses for a week or so. It is much better to do this rather
> than making any drirect connection to your potable water system (for
> obvious reasons).****
>
> ****
>
> 2. Anti-syphon: The outlet of the head hand pump (that usually goes to
> the bowl, is disconnected and a anti-syphon valve is inserted. So, the
> hose leaves the pump, goes up above the heeled water line to the
> anti-syphon valve. It then returns to the bowl. This is to prevent
> flooding of the boat should a valve be left in the wrong position by the
> uninitiated user. This concludes the raw water circuit.****
>
> ****
>
> 3. Head output: The sewage output of the bowl goes to a fitting on the
> side of my transverse tank (port side), near the top. A piece of pvc pipe
> is cemented inside this fitting and extends the head output to the other
> side of the tank (starboard). This is my idea, and it assures that when
> the boat is heeled to port (my head is on the port side), and the tank is
> raised above the level of the bowl by the heeling, the extended fitting is
> now above the efluent. This prevents drain-back to the bowl. When the
> boat is heeled to starboard, the extended fitting is now in the efluent,
> but by heeling to starboard the tank is below the head and no syphoning can
> occur. This keeps efluent from going back to the bowl when the boat is
> heeled in either direction.****
>
> ****
>
> 4. Tank output. The output of my tank is taken from the side of the
> tank (near the bottom and goes to a "Y" valve. One side of the "Y" goes up
> to the deck fitting and the other goes through a Jacobson waste pump to the
> outlet seacock. The "Y" valve is lockable and the waste pump has a key
> switch, all to prevent accidental discharge overboard. This means that all
> waste goes through the tank which is not a disatvantage as far as I am
> concerned.****
>
> ****
>
> 5. Tank vent(s): I have two 5/8" vent fittings on my tank (one top
> port and one top starboard). One goes out just below the toe rail on the
> port side and the other on the starboard side. To prevent a septic tank,
> you can never have enough vents. It might be a good idea to put a charcoal
> filter in these lines, but so far I haven't done this.****
>
> ****
>
> That's my system, and I'm quite happy with it. Any questions, fire away.
> If that doesn't work, I'll try to post a diagram.****
>
> ****
>
> ****Gary********
>
> S/V Expresso****
>
> On Fri, Sep 14, 2012 at 6:09 AM, Richard N. Bush <[email protected]>
> wrote:****
>
> ****Gary****, I have to confess I didn't quite get all of the finer
> points of your description; would you possibly have a diagram or drawing of
> the system? Thanks****
>
> Richard****
>
> 1987 33-II; **Ohio River**, Mile 584****
>
> ****
>
> ****
>
> ****
>
> Richard N. Bush Law Offices
> ****235 South Fifth Street****, Fourth Floor
> ****Louisville**, **Kentucky** **40202****
> 502-584-7255****
> ------------------------------
>
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> ***
>
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