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Old 08-21-2007, 10:54 AM
NeilM's Avatar
NeilM NeilM is offline
MC Devotee
Join Date: Jul 2004
Boat: 2002 MariStar 210VRS 330hp Tower, Ballast, Bimini, 400w Clarion
Location: Calgary, Alberta
Posts: 1,023
overlooking the obvious ....

Well guys, I just got back from three weeks at Beyond Hope, Idaho, and I finally found my "leak".

For the first 2 days on the water, the bilge stayed bone dry (I had a dripless shaft seal installed last winter as part of my search for the elusive leak).

The next day, I had gallons in the bilge.

Only thing different: we didn't wakesurf for the first 2 days.

So, here it is: (geez, I feel like I need a drum roll, this has been so elusive):
When the boat is ploughing water for wakesurfing, the outlet for the bilge pump is under water. Since there is no one-way valve on the bilge pump line, the water flows IN that outlet and floods the bilge until there is enough water for the float switch to eject it (which still leaves gallons in the bilge).

... so now, I have to find a one-way valve for the bilge pump hose..

In the words of Homer Simpson: DOH!
2002 MariStar 210 VRS 330hp, Tower, Perfect Pass Stargazer, Bimini, Triple KGB Ballast, 400w Clarion XMD3, Bennett X-14 Wake Plate, 1000+ hours and still running great!

Life is not a journey to the grave with the intention of arriving safely in a pristine, well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming "-- WOW--What a Ride!"
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Old 08-21-2007, 11:39 AM
east tx skier's Avatar
east tx skier east tx skier is offline
MC Hero
Join Date: Jul 2004
Boat: 1998 Ski Nautique
Location: End of my rope.
Posts: 26,192
Glad you found your leak, Neil. Sorry that involved a lot of expense trouble shooting other areas.
Previous: 1993 Prostar 205

Red 1998 Ski Nautique, PCM GT40, 310 hp, , Acme 4 blade, Perfect Pass SG/Zbox.


Be kind. Have fun.
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Old 08-21-2007, 03:13 PM
wesgardner wesgardner is offline
TT Enthusiast
Join Date: Jul 2004
Boat: Maristar 240 1989 454 cu. in. 13/13 prop.
Location: Severna Park, MD
Posts: 350
Mine leaked fairly steadily from the rubrail back aft - steady stream at riding speed 21 mph +/- - seems at that speed water was deflected just right to hit the underside of the rail and caused a leak...

Glad you found it - use a swing-type check valve fore the least amount of restriction - http://www.plumbingsupply.com/pvccheck.html
is where I got mine..

while you're sleeping, things are breaking
'89 Maristar 240, 454, 1:1, 13:13 Acme

Last edited by wesgardner; 08-21-2007 at 03:17 PM.
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Old 10-02-2021, 06:21 PM
Married2Maristar Married2Maristar is offline
TT Enthusiast
Join Date: Apr 2020
Boat: Maristar, 210VRS, 2000, 5.7 L, Acme 1273, Perfect Pass Stargazer Wake, 910 bags rear, 515 locker, 520 bow, Ballast King Pumps, Swell Surf Gate,
Location: NW
Posts: 100
Hey Neil - I love how you have all the problems I want to solve as well. Did the one way valve solve your problems? My outlet is on the starboard side ahead of the captains chair on my 210 VRS. It’s hard for me to imagine that point of the boat is low enough to take on water.

I’m sure one point of water in my case is water coming over the back into the vents, which I’ve tried to solve through better driving. I replaced the shaft packing (myself, but that was a crappy learning experience, but easy now that I know what to do) and haven’t found the sweet spot for some slow dripping or no dripping.

Did you solve the water leak?
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Old 10-03-2021, 11:55 PM
RxMC's Avatar
RxMC RxMC is offline
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Join Date: Jul 2019
Boat: 1990 ProStar 190
Location: NORTH
Posts: 322
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Old 10-04-2021, 05:42 PM
37tr3n5k 37tr3n5k is offline
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Join Date: Mar 2019
Boat: 2004 Maristar / 350 MCX
Location: NBTX
Posts: 185
Make sure to use a small swing check valve so any trash in the bilge can pass thru and not clog it. I had this problem once and had to disconnect the hose to remove the trash from the inlet side of the check valve.
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Old 10-05-2021, 01:51 PM
robadele robadele is offline
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Join Date: May 2020
Boat: 99 Maristar 210
Location: United States
Posts: 226
Rather than put a check valve in the bilge pump line, I would length the hose is possible and route it higher than the outlet in the hull. This should limit the water coming in and not a risky as a check valve in the bilge pump hose failing.
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