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Go Back   SailNet Community > General Interest Forums > Gear & Maintenance
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  #11  
Old 08-31-2013
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Re: installing new water system

Quote:
Originally Posted by CalebD View Post
I'm with Olson34.
Get some fresh water and some sodium hypochlorite (bleach) in there and let it slosh around for a few days. That'll kill most anything living in there. If it doesn't leak then you are good to go.
Get a simple pump faucet or one with a foot switch for your main sink (& head sink if you need that too).
Water systems can get fairly complicated but it sounds to me like you are NOT asking about pressurized or hot water systems.
Keep it simple.
AbrahamX asked about a pressurized system in his post #4..... which I attempted to answer simply. Obviously a hand pump would suffice if that's his choice. Now he has another option. Decent hand pumps aren't cheap. I have no clue as to whether he may have a hot water tank or not.
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(formerly Rock Hall, MD)
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  #12  
Old 09-01-2013
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Re: installing new water system

Not sure if there is a clean out port or not. Just a tank with a few holes on the side where hoses used to be. No plumbing at all so I will be running new hoses. Guess I should try and look up how the old system was. If I remember correctly there are three holes in the side. How are these tanks usually sealed/topped off. Right now there is just a tight fitting piece of wood covering the top. It is painted on all sides and looks like it might be original.
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  #13  
Old 09-10-2013
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Re: installing new water system

gearing up for the project this week and I just am hearing about a vent. I have three holes in the tank one 7/8" at the bottom a 1 7/8inch on top and another one inch hole closer to the bottom. My step dad says the bottom is for intake to the faucet, the middle is the fill and the top is the overflow. Is the overflow and the vent the same thing? Right now the boat is stripped of all hoses and fittings so no real clues there. any help appreciated. If anyone can elaborate on the project please do. I am just doing a simple galley sink and head sink. No hot water or shower. Tartan 30
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Old 09-10-2013
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Re: installing new water system


Found this generic plumbing diagram. You can modify to suit your needs.
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Last edited by Seaduction; 09-10-2013 at 06:26 PM. Reason: Added comment
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Old 09-11-2013
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Re: installing new water system

So how do I run this vent? Should it vent outside? What type of material do I use? I assume the vent would be the top 2" hole. My step dad is doing most of the work while I'm at work. He says there is a hose that is cut right around the tank and it runs aft to a point shared with or next to where the bilge pump out outlet is. Its just your standard size one inch or so hose. Could this be the original vent possibly?
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Re: installing new water system

Quote:
Originally Posted by abrahamx View Post
So how do I run this vent? Should it vent outside? What type of material do I use? I assume the vent would be the top 2" hole. My step dad is doing most of the work while I'm at work. He says there is a hose that is cut right around the tank and it runs aft to a point shared with or next to where the bilge pump out outlet is. Its just your standard size one inch or so hose. Could this be the original vent possibly?
That could be the vent. The fill hose should be the large hose. The vent can be 1/2 inch or so.
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  #17  
Old 09-11-2013
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Re: installing new water system

22 gallons goes by real quick when you have an electric pump.

First, decide what you are going to use the water for, and make sure it lines up with how you intend to use the boat.
22 is fine for an extended weekend use, not for fresh water flush - and know how to take a 'navy' shower'.

A manual foot pump is the way to go on small systems. First clean the existing tank. Shock it with bleach, open the inspection port (install one if you need to - it's simple). Scrub it and flush it.
Silly to replace it, most folks are drinking water from systems more than 40 years old in their homes.

Rip out all the old hoses and fitting and install new marine rated fresh water hoses and fittings. Do not skimp here, the hose is important.
Get a foot pump - and on the pump to galley sink leg install a simple, home type, activated carbon filter. In the head, just a foot pump - you don't drink from there.
For faucets, most of the ones you see at home depot will work/fit. You'll want the kind that have a detachable head spray. Mind the material, rust is not your friend, but plastic does work.
I carry 130 gallons of water, we use a foot pump and filter as described above for all 'consumed' water.

For showers, get a solar shower and fill it from the sink. Lay it out in the sun for a couple hours for a nice hot shower. Note that a sun shower is also useful for rinsing dishes over the side, cleaning the cockpit, and even spraying down the deck with fresh water after a salt water rinse.
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  #18  
Old 09-12-2013
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Re: installing new water system

Its 30 gallons actually. The large hole is at the top. The other smaller holes are mid way down and at the bottom. I assumed the large top hole was the vent and the middle was the fill and the bottom the supply. Thinking about it though, would it fill all the way if the middle hole was the fill. But also would'nt the vent be blocked or flood if it was the middle? I'm going to call Tartan but would still like whatever advice I could get here. Seems not as many definite answers on this topic as I would have thought. Also whats my best bet for a deckwashout. Can I branch off the engine intake and pump from there? or is there a better option to draw fresh water from the lake?
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Old 09-12-2013
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Re: installing new water system

Vent needs to be at the top - typically 1/2 inch running to a fitting on side of the hull near the deck. Fill hose is typically 1 1/2 inch running to a deck fitting and can be just about anywhere on the tank. Supply to faucets is at the bottom of the tank and typically 1/2 inch.

I would second the recommendations to go with a simple manual system. A simple "flipper" pump in the head and a foot pump in the galley. My previous boat had a system like that and it was fine for multi-week cruises with only a 20 gallon tank. Current boat has hot and cold pressure water and I go through water a LOT quicker than I did on the previous boat.
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Re: installing new water system

Thanks for the replys. A little late as my step dad works fast. He already installed a electric pump and we have everything plumed. Just need to seal up everything and hope my seacocks open after who knows how long.
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