Irwin 42 CC: Where's the holding tank? - SailNet Community
 
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Irwin 42 CC: Where's the holding tank?

Hope someone can help..... I'm restoring a 1976 Irwin 42 CC. I have searched high and low and I can't find the holding tank. Any Irwin 42 owners there that can tell where they locate them.

Also, my fuel and water tanks are original. I'll being doing looking at those much closer over the next few weeks. Any history on how they hold up? Should I just replace them because of their age? Or, if could shape keep them?

Thanks for everyone's input.

Steve
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Re: Irwin 42 CC: Where's the holding tank?

The boat is old enough that maybe it didn't have one? From the drawings on Sailboatdata it appears that most tankage is in the engine area and under the main salon floor.

Sounds like you're going to have to trace discharge hoses from the two heads and see where they end up...

Ron

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Re: Irwin 42 CC: Where's the holding tank?

Well not till 1977 was it required to have a holding tank, but I would assume that by 76 all were being built with one as there was a fair amount of warning that the requirement was coming, and retro fitting was requried. But I think most of the Irwin 42's were built for the charter trade and if so likely was not a requirement in the islands. If you know she was a charter boat in the islands it likely does not have any unless they were added by a previous owner. But it should not be hard to find out, just follow the hoses leading from the toilet (and if they are less than a couple of years old just replace the hoses as that is where most stink issues come from). If they lead straight to a thru-hull then you don't have any and you will want to add one or two, or consider a composting head. The other option may be some sort of treatment system like an ElecroSan or chemical treatment before going overboard. I don't think they suffice in some areas anymore, I know the one on my boat was disconnected.

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Re: Irwin 42 CC: Where's the holding tank?

Thanks for the info..... unfortunately the hoses from the heads are all disconnected and cut. There is a waste deck fitting but that isn't hooked to anything either..... so maybe never had one. If it had one, anyone knows where they were installed?

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post #5 of 8 Old 12-16-2015
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Re: Irwin 42 CC: Where's the holding tank?

Probably been over twenty years since I helped a guy chartering one of these in the Caribbean and while digging out some tools I seem to recall it being under the v-berth. I could be mistaken though. See any unused strapping points up there?


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Re: Irwin 42 CC: Where's the holding tank?

A holding tank under the V berth makes sense for the forward head, but I'd hate to see that run from the aft head. So if it was equipped with any sort of holding tank I'd have though there would be two.. unless it was after-build and they only set one up.

to the OP.. are the original hoses ripped out altogether? No Y valves installed anywhere?.. the lack of diverter valves could be a hint too. Also, where is the deck waste fitting? It won't be far from where the tank would have been.

Ron

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Re: Irwin 42 CC: Where's the holding tank?

Funny you should mention that area. Under the V birth, there is an "open" reservoir that is connected to the deck fresh water fill.... and then that reservoir is connected to fill the fresh water tank. Craziest thing I have ever seen. I'm going to eliminate that and connect my deck fill hose directly to the fresh water tank..... Under the V may be the best place to locate a new waste tank.....thanks for your input..... Steve
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Re: Irwin 42 CC: Where's the holding tank?

Perhaps the tank I saw was an added fresh water then. Didn't ask as we were digging for tools to open his windlass up. Good luck on sorting out the mystery!


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