1) Does anyone have schematics on the head plumbing? I can't find it in the owners manual (I may need to replace some hoses and want to make sure I replace them correctly).
2) I have the replacement Y-valve from Bosworth (M-95), but I can't get the hoses off the older Y-valve. Any tricks? They seem to be glued on after 14 years. I've tried brute force, a pipe wrench, heat gun, nothings working. Going to try an auto hose puller (like a U-shaped screwdriver), but open for any ideas. The hoses are cut to exact length so I can't cut them. Hacksaw the old Y-valve apart?
3) Looks like I'll have to take the head out (or at least the intake hose off), but same issue, minimal flexibilty of the intake hose. Anyone repaired or replace the head?
4) Finally- I think they have the text in the J/109 Owner's Manual on Page 40 backwards. IT states: "The salt-water intake thru-hull is underneath the head sink and the discharge is in the starboard aft locker". The Thru-Hull Location Diagram on Page 22 is correct. It should be "The salt-water intake thru-hull in the starboard aft locker (below the battery charger) and the discharge thru-hill is underneath the head sink"
Thanks, for any insight. In hindsight, should have just called the marine repair guy...
You found a hole in the J/109 owners manual that I just filled. The plumbing diagram is the same as the J/105. I stole the diagram from the J/105 owners manual and posted it on the class website. On the menu, mouse over Info and click on Drawings and Manuals where you will now see J/109 Head Plumbing System Diagram – same as J/105 – 4/1/2003 in the J/Boats Documents section.
I was able to remove the hoses using a heat gun and ended up using lots of force. Since you have a new valve and hoses, it may be just as easy to cut the hoses and then use the heat gun and a knife to cut through the remnant on the fittings you need to replace. I did not remove the flushing water supply hose. When I reassembled, I lubed all the hoses and fittings with silicone and used the heat gun . In my case, I used the Bosworth Y-Valve spec sheet located on the same page as the J/109 manuals, marked the position, removed and disassembled it. All the scale and salt was scraped off and the valve soaked in vinegar. Once it was clean, I lubricated all the rubber parts with silicone and reassembled it noting the alignment per the spec sheet. Before disassembly this was also very difficult to turn and I broke a handle. The replacement handle I used was metal rather than the plastic handle that came with the valve.
I have not removed the head but did disassemble it in place and used the Raritan PHII rebuild kit. The manual for the PHII is also on the same J/109 website page.
I agree that the J/109 manual has the description of the head intake and discharge backwards.
Best advice I can offer is similar to Bill's, heat it until it looks like it's hot enough, then heat it twice that much, then pull, pull and pull, and when you can't pull any longer pull on the hose some more Or, if it's not too late pay someone to do it. No matter how overpriced it may seem it's still better than doing it yourself.
#168, "Junkyard Dog"
I fully agree, this is a job I'd gladly have paid any amount for someone else to do. If you're interested, attached are few pictures of what you DON'T want your plumbing hoses and Joker valve to look like (caution- they are gross). If I were to re-write the J/109 handbook, I'd go into more detail on head and plumbing maintenance.
- Joker Valve with salt deposits.jpg (19.28 KiB) Viewed 5754 times
- Hose with salt deposit.jpg (28.88 KiB) Viewed 5754 times
I reviewed the specs on the J105/J109 plumbing diagram and noticed they have a vented loop between the Y-valve and the overboard discharge. The Raritan PHII Head manual also shows vented loops. When I removed my old hoses I didn't see one, nor do I see one as I trace the hoses back to the holding tank. So my question before I start cutting hoses and re-installing:
1) If the plumbing schematics show a vented loop, why isn't there one on the J109. Is it just my boat?
2) Is the vented loop optional? According to marine sanitation store they are recommended.
3) Any problem with installing one or, in an attempt to improve the system, I make it worse?
Just curious why the specs have a vented loop, the Raritan Manual shows vented loops, but I don't see any on my J/109.
Thanks again for the all the advice and help
- J109 Pumbling V loop.jpg (10.45 KiB) Viewed 5744 times
My guess is having the loop aft like this makes it accessible for service. The vented loop is installed for anti-siphon reasons. I have seen many other boats that don't use them. Given that you have the project ongoing, I would take the time to install one.
I'm having that remedied before commissioning this spring.
The plumbing schematic in this post is helpful but some tips on the installation would also be great.
Does anyone have additional information on where to install the tank or even additional photos?
Is it always in the aft starboard locker? Could it be fit behind the moulded panel that the actual head is mounted on?
Any thoughts are much appreciated as I've got to get the yard going on the job.
- J109 Head Color2.jpg (121.75 KiB) Viewed 3432 times
- Aft Plumbing3.jpg (356.14 KiB) Viewed 3432 times
- Aft Plumbing2.jpg (437.67 KiB) Viewed 3432 times
- Aft Plumbing1.jpg (388.97 KiB) Viewed 3432 times
Adam - I don't believe there is enough room in the void behind the head to install a holding tank. You would also need to cut the liner in order to install it since the space isn't accessible. Probably best to mount the holding tank stbd side aft per the photos above. In addition to the tank photo I posted earlier, here is a photo showing the aft end of the holding tank. What isn't clear shown in the pictures is the shelf that is tabbed to the hull that holds the tank. There is a lip that prevents the tank from sliding and nylon webbing to hold the tank in place.