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Steve, if you have access to the tank...
The vent fitting on it CAN'T be THAT hard to find! There are only two hoses coming off the tank on the top or at the top--the one from the toilet, and the vent. The vent is the smaller one. If you don't have access to the tank, you're gonha have to create it..'cuz sooner or later you're gonna have to replace ALL the hoses (the tank too, if it's metal)...which you can't do if you don't have access to 'em. Meanwhile, this isn't likely to be the only time you'll have to clean out the vent at the tank end, either. Maybe it's time to bring in some more knowledgable local help...someone who can come aboard with you?
The vent fitting on it CAN'T be THAT hard to find! There are only two hoses coming off the tank on the top or at the top--the one from the toilet, and the vent. The vent is the smaller one. If you don't have access to the tank, you're gonha have to create it..'cuz sooner or later you're gonna have to replace ALL the hoses (the tank too, if it's metal)...which you can't do if you don't have access to 'em. Meanwhile, this isn't likely to be the only time you'll have to clean out the vent at the tank end, either. Maybe it's time to bring in some more knowledgable local help...someone who can come aboard with you?
It's Right Here (And PS to Peggy...)
Look at the starboard side, just down from and slightly forward of the mid-ship cleat. It is the shrouded steel one, not the plastic one. The holding tank itself is under the panel next to the chart table. You have to remove the one in front of it to get that panel off. However, the tank connections are visible under the aft portion of the starboard setee. Yes, the tank is aluminum and it will need to be replaced. I will be ordering mine soon, probably a built-up plastic one in place of the aluminum replacement (which is heavier guage and better coated I'm told). I will put in a 1" vent then too. P.S. Also, Peggy, I built a back-flush device to back-flush the vent. It is the plunger portion of a small hand-held kitchen plunger which I opened up for water flow and attached a female hose connection. Works like a champ to free up obstructions without a mess. Yes, I know filling the tank to overflow is recommended and I do, but sometimes the stupid pump out hose is gone or the bib messed up, so I can do this at the dock. I'll post a pix sometime. PPS: You will be pleased to know that, after purchasing a new seat and cover on e-bay for a third of the factory cost, I now have only the bowl original on my aft Jabsco. I figure I have about $650 into it now. We have become quite attached. <smile> Rick D.
Look at the starboard side, just down from and slightly forward of the mid-ship cleat. It is the shrouded steel one, not the plastic one. The holding tank itself is under the panel next to the chart table. You have to remove the one in front of it to get that panel off. However, the tank connections are visible under the aft portion of the starboard setee. Yes, the tank is aluminum and it will need to be replaced. I will be ordering mine soon, probably a built-up plastic one in place of the aluminum replacement (which is heavier guage and better coated I'm told). I will put in a 1" vent then too. P.S. Also, Peggy, I built a back-flush device to back-flush the vent. It is the plunger portion of a small hand-held kitchen plunger which I opened up for water flow and attached a female hose connection. Works like a champ to free up obstructions without a mess. Yes, I know filling the tank to overflow is recommended and I do, but sometimes the stupid pump out hose is gone or the bib messed up, so I can do this at the dock. I'll post a pix sometime. PPS: You will be pleased to know that, after purchasing a new seat and cover on e-bay for a third of the factory cost, I now have only the bowl original on my aft Jabsco. I figure I have about $650 into it now. We have become quite attached. <smile> Rick D.
tank fittings
Hi Rick and Peggy. I have access to the tank fittings under my nav station seat. There are two hose fittings...both are 1.5 or 2" ID. This is why I am trying to find another owner who has a setup like mine. I diagnosed the problem from the symptoms, cleaned out the vent through hull and the top of the vent which is 1" id corrigated plastic and does not match the hoses connected under the nav station. I have two connections under the starboard seatte but believe them to be the stb water tank fill and vents.
Hi Rick and Peggy. I have access to the tank fittings under my nav station seat. There are two hose fittings...both are 1.5 or 2" ID. This is why I am trying to find another owner who has a setup like mine. I diagnosed the problem from the symptoms, cleaned out the vent through hull and the top of the vent which is 1" id corrigated plastic and does not match the hoses connected under the nav station. I have two connections under the starboard seatte but believe them to be the stb water tank fill and vents.
Tank Photo
Those two hoses are 1 1/2 inches and are intakes for the bow and stern heads. The third one is a pump-out hose. Note that these have been modified in many cases by the installation of overboard valves. See the vent hose connection. It should go to a metal clamshell-vent (like the fuel vent) if stock. The one inch plastic vent through-hull should be the one to your starboard water tank unless it has been changed, or there was a production change (mine is a '94). See the photo. Rick D. PS: you are correct, Steve. The connections under the setee are the water tank. Sorry to steer you wrong on that. I should have looked at my photos first.
Those two hoses are 1 1/2 inches and are intakes for the bow and stern heads. The third one is a pump-out hose. Note that these have been modified in many cases by the installation of overboard valves. See the vent hose connection. It should go to a metal clamshell-vent (like the fuel vent) if stock. The one inch plastic vent through-hull should be the one to your starboard water tank unless it has been changed, or there was a production change (mine is a '94). See the photo. Rick D. PS: you are correct, Steve. The connections under the setee are the water tank. Sorry to steer you wrong on that. I should have looked at my photos first.
Poor Steve...you're really having a time of it! 
Wait a sec...BOTH toilets are connected to the same tank, but there are only two hose connections at the top? Unless the discharge lines from both heads are wyed or teed before they get to the tank, there has to be a third hose--the vent. And if the vent line is corrugated at the thru-hull end--and is only 1" (head discharge hoses are 1.5"), I'd bet the whole line is the same corrugated hose...and should be replaced with sanitation hose anyway. So I TEEENK I may have the solution to your problem: Disconnect it from the thru-hull again and start pulling on 1" hoses around the tank--especially any that are the same corrugated hose. The one you can pull through is the holding vent line. You shouldn't have to pull it very far to find out which one it is....and you don't want to, 'cuz it sounds like running the new hose will be a major PITA unless you can pull it through at the same time you pull the old hose out (more on how to do that later...right now we gotta your vent line cleared and your tank empty). So just pull on it enough to be sure it is the right hose. Or...maybe you and Rick should connect by email and swap phone numbers so he can walk you through finding it. Rick, I'd like to see your vent "backflusher"...sounds interesting. As for your toilet...you must REALLY be emotionally attached to to...'cuz you could have bought 3 PH IIs for what you've spent on it! You and Jim Rushing have a lot in common..he replaces the pump on his Jabsco toilet every year. By now, he may actually have more invested in his than you have in yours!
Wait a sec...BOTH toilets are connected to the same tank, but there are only two hose connections at the top? Unless the discharge lines from both heads are wyed or teed before they get to the tank, there has to be a third hose--the vent. And if the vent line is corrugated at the thru-hull end--and is only 1" (head discharge hoses are 1.5"), I'd bet the whole line is the same corrugated hose...and should be replaced with sanitation hose anyway. So I TEEENK I may have the solution to your problem: Disconnect it from the thru-hull again and start pulling on 1" hoses around the tank--especially any that are the same corrugated hose. The one you can pull through is the holding vent line. You shouldn't have to pull it very far to find out which one it is....and you don't want to, 'cuz it sounds like running the new hose will be a major PITA unless you can pull it through at the same time you pull the old hose out (more on how to do that later...right now we gotta your vent line cleared and your tank empty). So just pull on it enough to be sure it is the right hose. Or...maybe you and Rick should connect by email and swap phone numbers so he can walk you through finding it. Rick, I'd like to see your vent "backflusher"...sounds interesting. As for your toilet...you must REALLY be emotionally attached to to...'cuz you could have bought 3 PH IIs for what you've spent on it!
You and Jim Rushing have a lot in common..he replaces the pump on his Jabsco toilet every year. By now, he may actually have more invested in his than you have in yours! Rick, I been looking for a plastic tank
Rick - I have a 1993 40.5 with the original tank. It still works fine, but I would like to replace it with a plastic one. Have you located a replacement? Thanks, Tim
Rick - I have a 1993 40.5 with the original tank. It still works fine, but I would like to replace it with a plastic one. Have you located a replacement? Thanks, Tim
sensor?
Rick: Thanks for the photo. I went to the boat today and started pulling up the sole. I just bcould not get the final piece, the one over the tank free. It seemed to be pivoting on the corner of the aft head bulkhead. I can only hope that someone at Hunter did not decide to put an extra screw on mine. At any rate, I'll take the flatbars and big screwdrivers to the boat next time and see if I can work it free. I see on your photo a white sensor with two white wire leads. Is this for a tank monitor. If so, what type. Is the sensor internal or external? How do you like it?
Rick: Thanks for the photo. I went to the boat today and started pulling up the sole. I just bcould not get the final piece, the one over the tank free. It seemed to be pivoting on the corner of the aft head bulkhead. I can only hope that someone at Hunter did not decide to put an extra screw on mine. At any rate, I'll take the flatbars and big screwdrivers to the boat next time and see if I can work it free. I see on your photo a white sensor with two white wire leads. Is this for a tank monitor. If so, what type. Is the sensor internal or external? How do you like it?
Steve and Tim
Steve, yes, that panel has to come out and go in JUST SO. Good luck. Don't use too much force. It is probably being pinched by the seat panel. Yes, that is a tank sensor. It is a Sealand and costs about sixty bucks. See West Marine catalog page 545. NOTE the illustration of it and the two hundred dollar one is reversed. This is a one-position sensor. When the light goes on, the tank has a couple of inches left to full. This is the second one I have had and find that, for me, anything more complicated isn't necessary. Tim, the lead I have for a plastic tanks is through Richard Stidger. Here is his quote from a thread earlier this year: "BTW, I have contacted Triple M Plastics and sent them the drawing of the tank. They quoted $347 to manufacture a poly tank for me. I will be talking to them soon to iron out the details. If anyone wants a copy of the tank drawing, email me from the Hunter owners listing and I will send it. It is a pdf file with very good detail." In fact, Rich sent me a copy, but I can't find it in my files, so I'll have to beg for another. Rick Dinon
Steve, yes, that panel has to come out and go in JUST SO. Good luck. Don't use too much force. It is probably being pinched by the seat panel. Yes, that is a tank sensor. It is a Sealand and costs about sixty bucks. See West Marine catalog page 545. NOTE the illustration of it and the two hundred dollar one is reversed. This is a one-position sensor. When the light goes on, the tank has a couple of inches left to full. This is the second one I have had and find that, for me, anything more complicated isn't necessary. Tim, the lead I have for a plastic tanks is through Richard Stidger. Here is his quote from a thread earlier this year: "BTW, I have contacted Triple M Plastics and sent them the drawing of the tank. They quoted $347 to manufacture a poly tank for me. I will be talking to them soon to iron out the details. If anyone wants a copy of the tank drawing, email me from the Hunter owners listing and I will send it. It is a pdf file with very good detail." In fact, Rich sent me a copy, but I can't find it in my files, so I'll have to beg for another. Rick Dinon
Tanks a lot!
Rick: I wonder if we could save a bit if a bunch of us got together and order tanks as a group. I'm sure mine (96) is going too need some work soon, I'm just afraid to look. I do seem to get a bit of smells now and then, just causes me to open another bottle of wine. But eventually,,,,,,,,
Rick: I wonder if we could save a bit if a bunch of us got together and order tanks as a group. I'm sure mine (96) is going too need some work soon, I'm just afraid to look. I do seem to get a bit of smells now and then, just causes me to open another bottle of wine. But eventually,,,,,,,,
Two of Us Will Be Ordering
I am going to order one when Rich does, probably sometime mid-October. E-mail me and I'll let you know when and we can order three, and there may be a minor break in price. Rich is going to take his out and verify the diagram measurements first. Sounds like a plan. Rick Dinon
I am going to order one when Rich does, probably sometime mid-October. E-mail me and I'll let you know when and we can order three, and there may be a minor break in price. Rich is going to take his out and verify the diagram measurements first. Sounds like a plan. Rick Dinon
Let me weigh in here...
I have contacted Triple M and they seem to be a no-nonsense company. They quoted promptly, and on the phone had immediate answers to my questions. The tank they quoted me was to the Hunter drawing that I had sent them. Rick D. has a copy of that drawing now too. The tank is 3/8" thick and since they build each tank individually there is no price break for a multiple order. As Rick mentioned, I am going to pull my tank out in October and verify measurements to the Hunter drawing. I am also going to look at the clearances and see if I can improve on the installation and tank design to add a second vent line. I plan to order near the end of October and have the tank and new hoses ready to go in at spring commissioning. My h40.5 is a 1997 model, the last one out of the factory. If anyone would like a copy of the drawing that Hunter sent me, just email me from the owners directory and I will send you a copy. It is a .pdf file and has very good detail.
I have contacted Triple M and they seem to be a no-nonsense company. They quoted promptly, and on the phone had immediate answers to my questions. The tank they quoted me was to the Hunter drawing that I had sent them. Rick D. has a copy of that drawing now too. The tank is 3/8" thick and since they build each tank individually there is no price break for a multiple order. As Rick mentioned, I am going to pull my tank out in October and verify measurements to the Hunter drawing. I am also going to look at the clearances and see if I can improve on the installation and tank design to add a second vent line. I plan to order near the end of October and have the tank and new hoses ready to go in at spring commissioning. My h40.5 is a 1997 model, the last one out of the factory. If anyone would like a copy of the drawing that Hunter sent me, just email me from the owners directory and I will send you a copy. It is a .pdf file and has very good detail.
Any of you owners...
who still have the aluminum holding tanks should follow these guy's lead and replace your tanks now and NOT later!!! I'm just finishing retrofit on a '94 35.5 that was very lightly used and that aluminum tank had at least 8 holes in it. Do NOT wait until you are flushing into your bilge or worse!
who still have the aluminum holding tanks should follow these guy's lead and replace your tanks now and NOT later!!! I'm just finishing retrofit on a '94 35.5 that was very lightly used and that aluminum tank had at least 8 holes in it. Do NOT wait until you are flushing into your bilge or worse!
H.Tank drawings
I have holes in the H.T. of my 1966 40.5. I'm interested to receive the drawing of the plastic H.T. Best regrads and thank you for your help. Giovanni
I have holes in the H.T. of my 1966 40.5. I'm interested to receive the drawing of the plastic H.T. Best regrads and thank you for your help. Giovanni
Right to the Point
Giovanni: I just had to laugh at your picture. That sure does drive the point home!! Guess there is no doubt about the quality of the seams!
Giovanni: I just had to laugh at your picture. That sure does drive the point home!! Guess there is no doubt about the quality of the seams!
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