Here's one tossed out for comment from my esteemed HOF colleagues.
Aslan has three heads equipped with the latest '80's technological wonders--Galley Maid 32V pumps. #1, I'm not entertaining any upgrades. However, soon I will need to replace the sea strainer to their respective head pump 3/4" hoses. They are, all three, various degrees of hell on access. Likely, I'll have to abandon one or two. Further, never in the known history of Aslan has more than one head been flushed at a time. In fact, the bow cabin head is typically shutdown.
Why could I not run one hose (or PVC) from one sea strainer to the forward bilge and manifold it there to serve each head pump? This is much the same system we use for our HVAC units, right? The worst that I anticipate happening is a less effective flush should history be made and two heads be simultaneously flushed; that's no big deal.
So, if I
a. eliminated two below-the-waterline hoses;
b. and I replaced the sea strainer hose barbs with bronze plugs,
wouldn't that be a good thing? Have to add ball valves to isolate the heads after the manifold.
Would not elimination of the seacocks themselves during a future bottom job be an even better thing?
What sayeth y'all?
PS: Remember I have sensitive feelings.
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Head System Modification/Safety Upgrade??
Semper Siesta
Robert Clarkson
ASLAN, 1983 55C #343
Charleston, SC
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Re: Head System Modification/Safety Upgrade??
Or, add a pickup to your water tank attached to a valved manifold, don't forget the check valve back to the tank, and run your GM heads on fresh water.
Think we used 1" pvc pipe for the pickup tube into the tank.
Now you can eliminate 3 thru hulls.
When we did this we had 3 heads, now only 2 as we converted the v berth head into a tackle room.
Also, the remaining 2 heads share a common discharge thru hull.CRICKET
1966 HAT50C101
Purchased 1985 12v71Ns
Repowered 1989 with 8v92TI
Repowered 2001 with 3406E
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Re: Head System Modification/Safety Upgrade??
Forgot one thing, we have to be careful not to overfill the water tank as sometimes the bowls will flood.
CRICKET
1966 HAT50C101
Purchased 1985 12v71Ns
Repowered 1989 with 8v92TI
Repowered 2001 with 3406E
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Re: Head System Modification/Safety Upgrade??
The fewer thruhulls the better. When I repowered a couple of years ago, I had a total of 8 unused thruhull removed and glassed over. My boat used to have 3 GM heads each with discharge. They had been capped in the late 90s when the GM were replaced by VF.
I sleep much better with far fewer holes... I m down to just 4 thruhulls. I even removed the macerator TH and added an above WL dischargePascal
Miami, FL
1970 53 MY #325 Cummins 6CTAs
2014 26' gaff rigged sloop
2007 Sandbarhopper 13
12' Westphal Cat boat
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01-22-2020 06:58 PM #6
Re: Head System Modification/Safety Upgrade??
I think Raz carries a freshwater conversion kit.
1977 Hatteras 58' MY, Hull No. 304, 4-stateroom galley up model with 8V71TIs in Knoxville, Tennessee