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#1
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Okay, time for me to pay the piper, face the music, um, take my lumps,
er, anyway... Turns out, I don't have a magic head, don't even have a difficult head problem due to some weird vent connection. What I have is: Peggie Hall wrote: Stephen Trapani wrote: When we use the head (a Groco Type K) and pump it out, the waste comes out the holding tank vent line. I meant when I pump the toilet... I knew that's what you meant. Okay, then I'm thinking logically, just going insane. Or I really do have a magic head! ;-) It's a plastic tank, I can see it's empty. Since you've used the toilet, or only after you vacuumed it out? 'Cuz it's very possible that the tank doesn't hold anywhere near as much as you think it does. How many gallons is it supposed to hold? It's also possible that the toilet either uses a lot more flush water than you think...or that it's leaking flush water, filling up the tank. Yeah the tank was full. Somehow my dreamworld must have gotten mixed up with reality, or my memory mixed up with itself, or something, so your first guess was the right one. Good job! Not only didn't I stump the headmistress I didn't even give her a little challenge. Oh well. No point going into the gory details of how I messed up, I'm kind of sketchy on that anyway, but you pretty much nailed it from the start. I would like to ask another question though, since we now know my confusion knows no bounds. Remember the head intake is connected to the fresh water system: ...reconnect it to the intake thru-hull--which I suspect you've mistaken for a head discharge thru-hull...I'll bet the PO "converted" it when he connected the intake to the fresh water system. ... could be, but the '79 Hunter 33' couldn't have been designed without a head discharge thru-hull, could it? Prob'ly not on one that old, but it's possible...'cuz '79 was the first model year to require holding tanks. Many boats built from then on were plumbed to send all the waste to the tank. But it's more likely that a PO prior to the most recent PO removed the head thru-hull and glassed it over...'cuz your toilet isn't original either (it's a $600 toilet, btw). So I'm guessing that the same PO who connected the intake to the fresh water system also installed that toilet and decided to use the sink drain through hull as a head discharge. However... Maybe it Y'd into the sink discharge? Should I try to run it to there? That'll work...in fact, although I don't think Hunter ever did, many sailboats are plumbed that way to eliminate a thru-hull. You will have to either keep a plug in the sink or install a shut=off valve in the sink drain line that should remain closed except when the sink is in use...otherwise the toilet will pull air through the sink that'll prevent it from priming and pulling in any flush water. So I have a through hull in the starboard locker near the head that appears to be attached to the Y-valve and a through hull way over under the port settee that, to the best of my knowledge is connected only to the sink discharge. Where should I connect the raw water intake for the head and where should I connect the overboard side of the head discharge? Stephen |
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#2
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Stephen Trapani wrote:
Okay, time for me to pay the piper, face the music, um, take my lumps, er, anyway... Turns out, I don't have a magic head, don't even have a difficult head problem due to some weird vent connection. What I have is: Yeah the tank was full. Somehow my dreamworld must have gotten mixed up with reality, or my memory mixed up with itself, or something, so your first guess was the right one. Good job! Not only didn't I stump the headmistress I didn't even give her a little challenge. Oh well. So I have a through hull in the starboard locker near the head that appears to be attached to the Y-valve and a through hull way over under the port settee that, to the best of my knowledge is connected only to the sink discharge. Where should I connect the raw water intake for the head and where should I connect the overboard side of the head discharge? Welll... You can use the same 3/4" thru-hull for both the head sink drain and the head intake, but you cannot use the same thru-hull for both the head intake and discharge. Since you don't have a 1.5" head discharge thru-hull/seacock, you'll have to install one...or maybe not, unless you're in coastal waters that offer immediate access to open sea at least 3 miles offshore from the nearest point on the whole US coastline...'cuz it's illegal to flush a toilet directly overboard or dump a tank in any US coastal waters inside the "3 mile limit" and in all inland waters including the Great Lakes. Getting you sorted out is gonna be more involved than is practical here. So how 'bout emailing me? -- Peggie ---------- Peggie Hall Specializing in marine sanitation since 1987 Author "Get Rid of Boat Odors - A Guide To Marine Sanitation Systems and Other Sources of Aggravation and Odor" http://69.20.93.241/store/customer/p...40&cat=&page=1 |
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#3
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Stephen Trapani wrote in message ...
Well, I was going to wait until I tore things apart further to ask, but I figured maybe someone would have an easy answer to save me some time. Here's the punchline: When we use the head (a Groco Type K) and pump it out, the waste comes out the holding tank vent line. This seems impossible to me. First of all, the tank itself is empty and regardless of which way I flip the Y valve the waste still comes out the vent line, which is attached to a three inch screw in top, in the top of the holding tank. Here are some facts that may help: The water supply for the toilet is the fresh water tank. The previous owners put a ball valve before the head, when you turn it on, water comes in the toilet bowl, then you turn it off/down while you pump out the bowl,etc, and leave it off until you use the toilet again. Completely non-standard setup, I guess. I've been working on other more important things, but this was going to be my next, um job, sort of, but anyway the first thing I was going to try was to open the seacock toilet waste valve. I haven't tried this yet though, all this has been happening with that valve closed. Also, waste slowly leaks from around the top of the tank, onto the top of the tank either out of the vent line or from around the screw fitting. Whenever I look there is a little puddle of waste on top of the tank. Again this seems impossible. How does the waste even get there when there seems to be none making into the tank and while there is definitely none collecting in the tank itself. I'm very curious. There are only three through hulls in the boat (H33), the raw water intake for the Yanmar, the head discharge and the sink discharge. I really don't want to haul out the boat to add one(budget problems). So, um, guesses? solid answers? things I should check first? Directions I should head to solve this? Thanks! Stephen The only way this can happen is if the vent line goes to the bottom of the tank. I assume you are very sure the tank is empty? Rolf |
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#5
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If the tank was originally a recirculating head system and the PO decided fresh
water flush was nicer and capped the vent by mistake and hooked the vent up to the recirculating line going to the bottom of the tank you would have the problem you described. Check the tank and count the number of fittings on it. recirculating tanks have 2 big lines and 2 small lines. If you have this and one small line is capped just switch the small line for the small capped line and try it out. Interesting thought, Rolf...but I don't THINK Hunter ever installed those gawdawful recirculating systems. I've yet to hear of one anyway, and I've been giving plumbing advice on the Hunter Owners site for more than 5 years. All the builders who did install recirculating systems used Raritan Compact toilets and either the Raritan the 5 gallon tank that wraps around the bowl or a 5 gallon plastic tank made by Kracor...the OEM toilets on 70s and early 80s Hunters were Mansfield/SeaLand 751/752 manual toilets and their tanks were all aluminum. But even if they did, it's unlikely the original tank would still be on the boat. The toilet has definitely been replaced, and if the PO who did that ever intended to use the tank, it would also have been replaced with a larger one...'cuz once it was converted to use flush water instead of recirculating waste water, a 5 gallon tank would fill up in a day. It's also in the wrong location to have been part of a recirculating system. But as I said, it's a very interesting thought...I'm surprised anyone today even knew that those systems ever existed. -- Peggie ---------- Peggie Hall Specializing in marine sanitation since 1987 Author "Get Rid of Boat Odors - A Guide To Marine Sanitation Systems and Other Sources of Aggravation and Odor" http://69.20.93.241/store/customer/p...40&cat=&page=1 |
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