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The Head:  Page 3
This page was last updated on 1 April 2002

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Next, I installed the new fittings I had purchased.  I wrapped the threads with Teflon tape and screwed in the fittings aligning each one approximately the way I thought the hose might end up running.  Now, on to the hoses--my absolute favorite part, since sanitation hose is so fun to work with.  (Not!)

When I originally installed the toilet last year, I ran a hose forward to beneath the vee berth, anticipating the installation of a holding tank.  With this hose already in place, my inlet line work was nearly done.  To complete the inlet, I drilled a 2" hole through the vee berth bulkhead near the inlet fitting on the tank (the most forward fitting).  Then, I wrestled the hose through the hole and marked it for length.  Using my inexpensive pull saw, I cut the hose to length.  With a hair dryer, I heated the  hose  up a little, and, with effort, got it onto the nipple.  Of course, in doing so I managed to partially break loose the plastic-welded fitting from the tank.  D'OH!  The inside of the yacht echoed with epithets.  See, manipulating this stiff, unbendable hose onto a hose nipple requires a bit of back and forth motion, grunting, and--let's face it--forcing it into place.  This patchedinlet.JPG (167255 bytes)had broken the plastic weld.  To fix it, I glued it back in place with some 3M 101 that I had around for another project.  I forced it into the gap, and gooped it all around for good measure.  I was not pleased with this turn of events, nor particularly with my fix.  Time will tell how effective my repair is.  I secured the hose in place with an AWAB hose clamp.

Next, I had to make a small modification to the water tank.  The Triton, as delivered, did not have a deck fill pipe for the water tank.  This is inconvenient.  Last year, I filled the tank by running a hose into the large inspection port in the tank that I installed.  Less than perfect.  My sanitation plans call for a manual waste pump to be located just forward of the holding tank, on a platform over the existing water tank.  This will make access to the tank even less convenient (though still possible if necessary), so I thought I would take a moment and address the issue.  I discovered that the 1-1/2" PVC threaded fittings that came with my holding tank fit perfectly into the threads of a standard waste deck pipe.  So, I drilled a hole in the tank and installed one of these in a thick bed of 3M 101, holding it in place with screws.  I installed the regular cover for now; later, I'll remove the cap and install one of the pipe elbows, which will allow me to connect a hose that will run to a deck fitting.

supportsforwastepump.JPG (166463 bytes)With that little project out of the way, I built a simple platform--well, two supports, really--for the Henderson MK V manual waste pump (identical to the one that we use to pump the head) that we'll use to pump the tank overboard in appropriate areas.  This setup was a requirement for me, since I don't want to be at the mercy of unavailable or inoperable shoreside pumpout stations to pump the tank.  Our setup will allow us to pump it overboard.  I determined that, in order for the v-berth filler piece to clear the top of the pump, I had to install it so that the base was even with the old supports for the little seat that was once installed over the water tank.  I cut a couple 1-1/2" strips of wood to fit, and screwed them in place.  Simple.

Next, I installed the waste pump, after changing the alignment of the intake/discharge.  These pumps are great, because you can change the angle of intake/discharge by removing the eight screws on the top and rotating the whole casing.  With a test piece of hose, I determined the best location and angle for the pump, and installed it with large screws.  I  put some small wedged beneath the after two mounts to raise that part of the pump up just a bit so that the handle would better clear the front of the holding tank.  When the pump was in place, I cut to fit and installed another length of sanitation hose, clamping it securely in place at each end.

Now the fun really began.  The outlet from the waste pump has to run back aft, beneath the vee berth, exiting somewhere in the head, where it has to connect with a second Y-valve to that that the holding tank can be discharged overboard when appropriate.  This project started out OK, once I figured out where to run the hose through the bulkhead.  Ideally, I wanted it hidden, like my original hose (running from the discharge Y-valve up to the tank inlet).  However, there simply wasn't enough room in the locker behind the head to run another hose--the V-berth platform is just too low.  The next best thing was to drill holeforobpumpout.JPG (149570 bytes)a hole down low in the narrow section between the outboardmost mast beam support and the longitudinal bulkhead that forms the locker behind the head.  Fortunately, there was enough room down there to fit my big drill with the 2" hole saw.  I double checked that I was definitely below the level of the berth, and drilled away.  Success!

Next, I ran a long length of hose (starting from the head side) through the new hole and into the locker beneath the vee berth.  Once I determined its ultimate path and best curvature to reach the outlet side of the waste pump, I drilled another hole into the center section under the vee berth and ran the hose through, connecting it to the pump outlet.  That wasn't too bad, right?  I used some wire ties to secure the two hoses (inlet and pumpout) together in the locker under the vee berth.

inletandpumpouthose.JPG (166320 bytes)

But that was only the easy part.  The tricky part is the final connections in the head.  It's only tricky because of the limited space available (trying to keep the hoses look halfway decent), and because of the absolutely inflexible, stubborn nature of the white sanitation hose.  It will not make anything approaching a tight curve, and is really not fun to work with.  Please refer to my lousy schematic on the previous page to refresh your memory, if necessary, to what I am trying to accomplish with my system.  To complete the setup, I need to modify the existing hoses in the head.  What used to be the direct overboard discharge for the head (running from Y-valve #1 to the seacock) will now have to run to a second, new Y-valve (#2).  A further hose from the other side of Y-valve #2 will continue on to the seacock.  The new hose running from the waste pump by the holding tank will connect to the other leg of #2, allowing it to be pumped overboard.

hosesbehindhead.JPG (160111 bytes)I attempted several different configurations, trying to get the hoses to bend and align the way I wanted, but didn't end up with anything that worked.  I'd like to avoid a ridiculous sea of cluttered hoses, so some means of keeping them neat and organized is my goal.  Plus, I have to work within the limitations of the space available (not much) and the bending qualities of the hose, such as they are.  After a few  tries, I gave up for the day--I needed the mental and physical break.

The next day, I approached the hoses with a fresh attitude.  Using a couple spare pieces of hose as a mockup, I tried to see how the Y-valve would work inside the locker behind the head (the so-called "hamper").  I could see that it looked feasible.  I plunged ahead by drilling a hole in the bulkhead aft of the "hamper" opening for the hose running from the #1 Y-valve to  the #2 valve. (I had previously marked the outline of my caned door on the Formica, so I knew that my holes were outside the area the door covers.)  Then, I drilled two more holes--one above the first one, and one down behind the toilet--for the other two hoses that need to be run.

Next, cutting the long hose from the holding tank roughly to the proper length, I stuffed it through the hole behind the head, and used the cut portion of the to run through the upper hole on the other side.  I was able to (more or less) easily connect two of the hoses to the Y-valve, even though the valve ended up upside down in order to get things to align properly.  But I had a problem with the third hose--the one coming from the holding tank.  I couldn't get it to bend so that it would meet up with the nipple on the Y-valve, and when I finally forced it into position, the hose kinked because the radius was too tight.  However, I decided I liked the general setup and, since I had some PVC elbows and rigid PVC-hose adapters that came with the holding tank, I thought I could replace the kinked section of hose with a nice  elbow.JPG (179946 bytes)PVC 180° bend.  I had to go to the hardware store for glue and a second PVC elbow with two female sides in order to make it work.  I glued up the arrangement and cut the kinked part of the hose out.  Cool, thought I...soon, the running of the hoses would be over, as it would surely be pretty easy to slip the last piece into place.

Wrong.  I don't know what the deal is, but those smooth gray PVC-hose adapters sure don't fit into the hose!  Heating the hose basically made matters worse instead of better, as the hose then extended to stick to the fittings.  Cold hose was an impossibility too.  I spent way too long trying to get this thing into place, becoming far too intimate with the toilet in the process.  After what seemed like hours of struggle, I had the hose maybe 1/8" onto the fittings--not enough to clamp yet.  Aaarrrrrgh!  I gave up for the day, leaving things as they were.  So close to success...but still so far.  Nothing I had tried had made me able to get the hose more onto the fittings--a problem compounded by the tight access inside the locker.  What a pain.  Frustrated, tired, and angry, I quit for the day.
After a couple days' respite, I returned to fight my white whale.  With much grunting, groaning and physical effort and contortion, I was finally able to get the two hoses onto the fittings enough to satisfy me, and to provide enough surface to clamp properly.  What a miserable chore.  If I never see another piece of white sanitation hose again, it'll be too soon.  With the final pieces clamped in place, I secured the one remaining end to the bronze overboard discharge headhoses-31802.JPG (165899 bytes) seacock.  I used a plastic wire tie to pull and hold the discharge loop hose into the bulkhead to keep it out of the way.

holdvent-pumpout.JPG (167345 bytes)I ran a 5/8" hose from the forward vent fitting up into the chain locker.  To terminate the vent, I added a through hull vent fitting in the hull on the port side, up near the toerail and about three feet back from the stem.  I chose this location because (1.) it is accessible from the inside for  hose attachment and (2.) a location near the bow is desirable so that the vent fitting does not continually go under water every time the boat heels.  Except for the transom, there's really no where on the boat to put the vent where it will never be under water, if only for a short time, and running a vent line from the forward holding tank to the transom would be inefficient, difficult, and possibly ineffective.  The fitting I chose features a little plastic shield that will prevent most splash-type water from getting inside.

holeforwastevent.JPG (155308 bytes)From inside the chain locker, I drilled a small pilot hole to mark the location on the outside.  Once outside the boat, I taped over the area to be drilled (to help prevent chipping) and, with great trepidation, began drilling the hole.   The vent required a 3/4" hole, and the only bit I have in that size is a spade bit--notorious for walking out of the hole at the start.  Carefully, I applied pressure and drilled into the hull.  Success--no chipping whatsoever!  The hull is a satisfying 5/8" thick at this level; as many times as I "discover" the thickness of this hull, I still never readyforwastevent.JPG (158020 bytes)cease to be amazed and impressed by it.  With the hole drilled, I applied a little more tape on the hull and scribed around the vent fitting with a utility knife, then removed the tape inside the line, where the fitting will sit.  This will prevent caulk from oozing everywhere.

With that done, I applied a bead of polysulfide to the back of the vent fitting and pressed it into place.  I carefully taped in in place to hold it while I went inside to install the plastic washer and bronze nut that hold it in place.  I held the nipple on the inside while I tightened the nut to keep the vent fitting from wasteventinstalled.JPG (197027 bytes)twisting.   When the nut was tight, I went outside, slightly straightened the fitting, and cleaned up the excess caulk that had squeezed out.  Then I removed the tape.  I attached the hose to the nipple on the inside and clamped it in place.

I installed a bronze plug in the second vent opening for now; we'll see how it goes.  I know that Peggie Hall recommends two vents, which is why I spec'd the tank that way, but if I don't need the second vent, I'd prefer to avoid installing it.  Time will tell.

tankbrace.JPG (176348 bytes)The hoses and such attached to the tank are stiff enough, and the fit of the tank close enough, that movement of the tank seems unlikely under the types of conditions we expect to sail in.  However, to add a little insurance, I installed a wooden cleat over the center of the tank, padded with some leftover foam from the icebox project.  I secured the cleat to the sides of the vee berth cutout with some simple wooden brackets.

tankbracebracket.JPG (166046 bytes)  

Finally, I ran one more length of white hose from the second dip tube connection on the tank beneath the vee berth up forward to the chain locker, where it is secured to a new waste pipe deck fitting on the foredeck.

 


Glissando, Pearson  Triton #381
www.triton381.com 

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