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Discussion Starter · #1 ·
I aquired an Irwin 28 earlier in the year as a restoration project. the boat came with no toilet or holding tank as the previously owner didnt empty it properly before winter storage. all the piping for pumpout is still there and in good order but i have no idea what the setup was like for this boat. can someone snap some pics of their head and where the storage tank is located? cheers
 

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Not knowing when your boat was built or what model it is, I'm guessing that the holding tank was underneath the port settee. You say the pumpout piping is still there, so the holding tank had to been in the same spot.
Just start looking around. There are only so many places where the tank can be located, it is probably obvious. For a basic sanitation system, all you really need is a new, marine head (toilet) and you probably already have the water intake thru hull to supply water to it. As I said, the holding tank is probably just behind the bulkhead under the settee, so you need a hose running from the head to the tank and another hose/pipe running from the tank to the deck pump out. You will also need a vent hose for the tank.
 

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Discussion Starter · #3 ·
I don't think you read my post because all the information your wondering about was in the title and post it's a 1972 Irwin 28. It has no toilet or holding tank. I just need to know the location of the holding tank the pipes for pump out and vent are pulled into the head. The only places that I can think of where the tank would be would be in the birth in the bow or in the cabinet in the head.
 

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Not giving you a hard time, but the year of your boat is not in the title or in your first post. Yes, I know it is a Irwin 28, but depending on when it was built, it might be a II. That's what I meant by model.
Anyway, I'm not familiar with your boat but I looked it up to see the layout. Yes, there probably is room underneath your V-berth for a tank. But, most boats I see have tanks underneath settees and that would be an obvious place as well. Not sure how big your cabinet is, but one might fit there as well. Are there any holes anywhere that hoses may have been run thru? is there a pump out fitting on the deck even if there is no hose connected to it?
Regardless of where a tank may have been installed at the factory, where is the most convenient, easiest place for you to put one? They may not be the same place.
 

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Since your boat did at one time have a head and holding tank, there has to be tell tale signs of where the holding tank was located. Fittings that held the tank in place...holes thru bulkheads where hoses were run, either forward under the V berth or aft under the settee...deck fittings for pump out....a hole in the side of the boat where a vent hose was connected or in the case of some boats like mine, my vent hose is connected to one of the hollow stanchions with a hole in the top of the sanction that is the vent. Where is the largest spot a holding tank will easily fit into?
There are only a few places that it will fit...I doubt it is in the cabinet you mentioned...I'm betting it is under the settee.
 

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Discussion Starter · #8 ·
Never mind Google answered that.. I'll take another look only spot I can think of is the settee where it could have been will have to look deeper

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You say this is a project boat. Where are you located? What projects need to be done to the boat? Is it sailable as is with cosmetics to attend to or more involved projects to do before getting it on the water?
 

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Discussion Starter · #11 ·
Im located in trenton Ontario Canada the boat is 100percent sail able just cosmetic upgrades. All the stantions leaked and caused the teak and backing to rot so all that has been pulled out Any mold has been removes which was barely any... Mostly just getting an all around upgrade to make it more enjoyable it will be a moving cottage

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Discussion Starter · #12 ·
The only major job which isn't to major for me because I do it all the time is replacing the core in the cockpit. The cockpit apparently has been bubbled for a while which means the fiberglass has separated from the core so I'm going to cut out the old fiberglass recore it and at the same time I'm thinking of removing the fuel tank and replacing it with a plastic one the same size and this way I will be able to have a sender on the tank to tell me my fuel level instead of having to dip a dirty stick in the tank all the time. Also this winter I'm redoing all the electrical and charging systems... I got about a hundred projects on the go defiantly a money pit but keeps me busy but most of the stuff I fabricate my self I am starting a blog to show the progress

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Just food for thought....regarding your fuel tank, I don't know how big your engine is, how big your fuel tank is or how much motoring you plan on doing. If I ever replace my tank, it will be for a smaller one. Reason...I've never used a full tank of fuel in one season.
My first sailboat that I had for 4 years had a 15 gallon tank. I never used more than 8-9 gallons in a season. The boat I now have has a 25 gallon tank. My first season, I did do two long trips and I may have used 20 gallons for the season. Haven't used more than 12-15 gallons a season since. Point I'm making, I always have old fuel in my tank because it never gets used up.
 

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I have a '76 Irwin 28 and the holding tank is located port side under the bow berth. The toilet is pretty standard for a boat with the manual pump etc. Your pump out port should be located about midship on the portside deck.
 

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Discussion Starter · #15 · (Edited)
Hey thanks for the info is it under the water holding tank in the berth or right against the wall was yours fiberglass ed in place . Pics would be great. The only tank I have in the bow berth is the water holding tank I upgraded mine Btw to have a powered pump and quick connect fittings for water pressure

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I will try to take some pics of it this weekend for you when I get back out to the lake. my fresh water holding tank is under the V-berth, the potty holding tank is right next to it on the port side of the boat also under the V-berth and farther aft than the fresh water tank. Not a very big potty holding tank, 8 gallons max I think if that. Not glassed in I don't believe. I will take some pics of the potty tank, piping and the head and you can compare to yours and see if it looks like it will work on yours. the piping goes straight from the head which is just aft of the V-berth on the port side and thru a bulkhead down low and close to inside of hull to the potty tank. there is another line that goes up to the port side deck about fore-midship to pump out the potty tank. There is also a pressure pump from the fresh tank to supply water to the sink in the head and to the galley sink. I'll try to post back here after this next weekend so you can see.
 

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Congrats on your Irwin 28. I've got an Irwin 32 1972 with holding tank under v-berth. Yours may differ. There are two very active Irwin lists on yahoo groups: irwinsailboats and irwinsailboatskippers. Also there is an Irwin group on Facebook. Posting your questions there will get you in touch with other owners of the boat you have.
best of luck,
Vince
 
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