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  1. #1
    Join Date
    Nov 2009
    Location
    Kaukauna, WI - 3minutes from glass
    Posts
    1,734

    Default Another Ballast Project

    Ok guys I have been running tsumani 1200gpm pumps that I have had a ton of priming issues ect. I want to make the jump to reversibles. Currently I have a single 1-1/4 thru hull and I am thinking that I can run two pumps off of that and install another 3/4 for the third. Am I going to have enough flow through the 1-1/4 to support two pumps?
    -Mark
    14 Mojo - Waiting patiently for my build date.
    02 Mobius LSV ---- Sold and always will be remembered as the one that started it all.

    "Hey you only live once"

  2. #2
    Join Date
    Aug 2010
    Location
    NW Houston
    Posts
    101

    Default

    Somewhere during my rebuild, I found information to support running two impeller pumps on a single 1-1/4 intake - so I did. Seems to work fine with all 1" fill and 3/4" vent hoses.
    89 Supra Saltare Restoration Project

  3. #3
    Join Date
    Jul 2008
    Location
    Snellville, GA & Lake Sinclair
    Posts
    7,006

    Default Another Ballast Project

    I think you're better off with a thru hull per pump with reversibles.
    Drew
    New ride: 2012 Mojo
    Old ride: 2008 OBV

  4. #4
    Join Date
    Mar 2009
    Location
    West Linn Oregon
    Posts
    11

    Default

    Quote Originally Posted by sybrmike View Post
    Somewhere during my rebuild, I found information to support running two impeller pumps on a single 1-1/4 intake - so I did. Seems to work fine with all 1" fill and 3/4" vent hoses.
    Multiple impeller pumps on a single intake does work, but over time you will see more wear on the impellers and pumps. With this said if it were an optimal solution, MasterCraft wouldn't have scrapped the system configuration after 2006.

    Quote Originally Posted by wolfeman131 View Post
    I think you're better off with a thru hull per pump with reversibles.
    We do prefer that customers do it right the first time which will minimize any chance of a system problem long term.

  5. #5
    Join Date
    Jul 2012
    Location
    Cumming Ga
    Posts
    307

    Default

    If you look for my posts I set this up on a 1 inch thru hull and posted all the results look for the post it goes over the fill time differences. Bottom line it does take longer with 2 pumps on a single thru hull fitting but its not a ton of time. I am doing the same upgrade and decided to go with one port per pump. Spencer sold me everything through wakemakers.

  6. #6
    Join Date
    Jun 2008
    Location
    De Pere WI
    Posts
    4,166

    Default

    come on over. I love to drill holes in boats

    as they say... silicone shmilicone... fox river isn't that deep so it won't sink far if it does.

    I'd be more interested in the root cause of the priming issue?
    '06 Supra Launch 20SSV-gone but never forgotten

  7. #7
    Join Date
    Jun 2007
    Location
    Vancouver, WA
    Posts
    4,032

    Default

    ^^ What he said. Priming on fill or drain pumps?
    Old enough to know better, young enough to do it anyway.

    2001 MobiusV

  8. #8
    Join Date
    Nov 2009
    Location
    Kaukauna, WI - 3minutes from glass
    Posts
    1,734

    Default

    Both. SandM and Berg both of you guys have considerably more room under floor to mount pumps. That is my biggest issue is that I have a really difficult time getting all three of the tsunami's under water level. I've fought it for two years now and I am ready to scrap it. Worse case I have some extra pumps for a bow sack, surf sack, ect.
    -Mark
    14 Mojo - Waiting patiently for my build date.
    02 Mobius LSV ---- Sold and always will be remembered as the one that started it all.

    "Hey you only live once"

  9. #9
    Join Date
    Nov 2010
    Location
    Katy, TX
    Posts
    4,150

    Default

    I want to do this too but I want detailed pictures of a boat that came with this set up factory. Pics of the thru hulls from inside the boat and outside, where the pumps are mounted, and how the hoses are routed
    David

    2008 Mobius LSV, Gravity III , Wake Plate, Z5, Exile SX65c's, Exile XM9s, Exile XI12D, Exile Harpoon, Exile SM600.1 , Exile Xi800.4.

  10. #10
    Join Date
    Nov 2009
    Location
    Kaukauna, WI - 3minutes from glass
    Posts
    1,734

    Default

    Ok guys as soon as I get the WM code I am placing my order. I am going to run the two rear pumps on the 1.25" and the locker / ibs on a second .75".
    -Mark
    14 Mojo - Waiting patiently for my build date.
    02 Mobius LSV ---- Sold and always will be remembered as the one that started it all.

    "Hey you only live once"

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