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Check Your Hot Water Heaters!

aero3113aero3113 Member Posts: 8,838 ✭✭✭✭✭
in General Boating Discussions
When I was changing the oil yesterday in the engines I noticed some salt around the hose end where the raw water goes into the hot water heater. I wiped the salt and all of a sudden I had a decent leak. I wiggled the hose and the barb and hose broke off! Luckily I found this now then it blowing off while underway. There was enough of the pipe left so I was able to just reattach the hose. I will need to cut and create a flair to hold the hose and clamp secure. I do carry a straight union to join the hoses together if the heater ever failed on me out on the water.


2008 330EC
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    Liberty44140Liberty44140 Member Posts: 4,333 ✭✭✭✭✭
    Interesting I always thought coolant ran through my water heater, not raw water. Is it always raw water?
    07' Cruisers 390 (Previous Rinker's: 06' 342EC & 01' 310FV)

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    aero3113aero3113 Member Posts: 8,838 ✭✭✭✭✭
    @Liberty44140 , I’m raw water cooled so it might be different on you engine.
    2008 330EC
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    Cableguy GregCableguy Greg Member Posts: 5,013 ✭✭✭✭✭
    Liberty44140 said:
    Interesting I always thought coolant ran through my water heater, not raw water. Is it always raw water?
    More than likely it’s coolant on your boat since it gets attached at the circulation pump. 
    2008 280 Express Cruiser, 6.2MPI, B3, Pittsburgh, PA "Blue Ayes"
    Go Steelers!!!
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    Liberty44140Liberty44140 Member Posts: 4,333 ✭✭✭✭✭
    Ahh gotcha, thanks gang, makes sense 
    07' Cruisers 390 (Previous Rinker's: 06' 342EC & 01' 310FV)

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    Liberty44140Liberty44140 Member Posts: 4,333 ✭✭✭✭✭
    Can you replace that part or is it time for a new heater unit?
    07' Cruisers 390 (Previous Rinker's: 06' 342EC & 01' 310FV)

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    aero3113aero3113 Member Posts: 8,838 ✭✭✭✭✭
    It’s not replaceable but there’s enough pipe left on mine to be able to still use it. If it broke closer, a new heater would be needed.
    2008 330EC
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    LaReaLaRea Member, Moderator Posts: 7,573 mod
    But you know you're living on borrowed time, right?  Corrosion happens in the entire pipe, not just the end.  
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    aero3113aero3113 Member Posts: 8,838 ✭✭✭✭✭
    LaRea said:
    But you know you're living on borrowed time, right?  Corrosion happens in the entire pipe, not just the end.  
    Yes
    I’ve been looking at new heaters.
    Anyone have any reviews on the Kuuma units??
    2008 330EC
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    davidbrooksdavidbrooks Member Posts: 1,351 ✭✭✭✭
    I bought the kuuma 2 years ago and no complaints.
    It's 5 O'Clock Somewhere!
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    YYZRCYYZRC Member Posts: 4,931 ✭✭✭✭✭
    I have a kuuma that I bought start of last season. It is leaking already at the same fitting. 
    2008 350 EC on Georgian Bay
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    J3ffJ3ff Member Posts: 4,061 ✭✭✭✭✭
    Mine has only ever seen fresh water from the dock. Did not hook up the coolant from the engine to circulate because it's pretty much 80+ degrees everyday here.. the engine warms the tank even on "cool" days.. we don't have "cold" water in the keys, ever. Lol.. Even turning a regular house shower onto cold only is still a warm experience! 
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    LaReaLaRea Member, Moderator Posts: 7,573 mod
    I installed a Kuuma two years ago.  It was shipped with a faulty thermostat, and they sent me a replacement at no cost.  Other than that, it has performed well.  
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    DanWDanW Member Posts: 66 ✭✭
    I installed a kuuma two years ago and have no problems with it so far. 
    2002 Rinker 342 Fiesta Vee
    1998 Regal 2100 LSR
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    PickleRickPickleRick Member Posts: 3,894 ✭✭✭✭✭

    J3ff said:
    Mine has only ever seen fresh water from the dock. Did not hook up the coolant from the engine to circulate because it's pretty much 80+ degrees everyday here.. the engine warms the tank even on "cool" days.. we don't have "cold" water in the keys, ever. Lol.. Even turning a regular house shower onto cold only is still a warm experience! 
    Your thick northern blood is doing the taking here.  Another few years down there and anything under high 80s may as well be glacial water. 


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    J3ffJ3ff Member Posts: 4,061 ✭✭✭✭✭
    ha ha, water temp was 78 today. Everyone else was talking about how cold it was. Couldn't believe it. Was perfect temp!!
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    PickleRickPickleRick Member Posts: 3,894 ✭✭✭✭✭
    edited October 2022
    78 is well below what I can swim in comfortably.   You'll get there lol

    I've swam the reefs down there in June only to come home and the lake temps here are 5 degrees warmer here.  There's a reason Floridians don't vacation the Bahamas in the winter, just not warm enough.  
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    SpyderwebSpyderweb Member Posts: 880 ✭✭✭
    Our swimmable season is more like 65-75.
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