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Old 03-10-2016, 07:08 PM   #1
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Default Blower Ducting

Hey everyone,

So I just got a 2004 1800 SR3. I am going through it to make sure all is well and I found one of the blower vent hoses is torn. The thing that is throwing me off, is there are 2 hoses in there. One connects to the top of a white fixture that says "Atwood Turbo 4000" on it. I'm assuming this is the suck and it exits out of the boat. There is nothing on the bottom of this fixture (see pic) but I read there should be another short hose piece that goes down further into the bilge. Easy fix. The second hose (which is the torn one) goes up and connects to a vent on the top of the boat but the bottom half is just hanging in the engine compartment. (See other pic). I'm thinking this is fresh air in or something for when the boat is under way...but I find it weird that it's just hanging there. Any advice would be great!! Not blowing up is a big concern of mine, so I want to make sure this is right. Thanks!!

Dave
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File Type: jpg Hose 1.jpg (339.7 KB, 3 views)
File Type: jpg Hose 2.jpg (185.9 KB, 2 views)
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Old 03-10-2016, 09:35 PM   #2
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Welcome aboard

You got it the one hose is a fresh air intake and should be about where it is in the picture. It is typically secured at its end but may have several inches hanging free from where it is secured.

The intake to the blower should go to the very bottom of the bilge.

Procedure is to run the blower for four minutes before starting the engine.
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Old 03-10-2016, 09:54 PM   #3
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Thanks for the info! So really all that is needed is to add that short piece of hose to the bottom of the intake and let run down into the bottom of the bilge. Is there any particular type of special hose needed for that bottom piece, or just another section that is the same as the uppers.
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Old 03-11-2016, 02:08 AM   #4
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Standard 4" blower hose same as the rest. Can be found at your local boat supply store such as West Marine.
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