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Old    carl beck (mainelaker)      Join Date: Feb 2003       06-08-2006, 4:57 AM Reply   
Taken from the other site:

I have looked at a bunch of posts regarding custom ballast systems & it is obvious there are many ways to skin a cat. I am thinking of a 4 bag set up for my Centurion.

My main design goals are ease of use, speed for fill & drain as well as low cost. I have four Skylon fat buddies that I will use to start with b/c they are just sitting around collecting dust. I am thinking one in each locker out back & one under each front seat. I realize I won't be able to fill the front ones to capacity & may eventually have to go with the fly high under seat sack.

The plan is to run 4 Tsunami 1220 pumps for fill & four Tsunami 800's to drain. I plan on running a scupper in the hull instead of the factory thru hull fitting from my center ballast so I can fill while idling through my no wake zone. I will run a manual ball valve off the intake to shut down for emergencies. I would like to run all four bags off individual switches so I can fill & drain each bag independently.

Will one pick up in the hull be enough to supply all four pumps? I will need to create a manifold for the single inlet line to split into four inlets, this would be the best place to mount the inlet pumps I think? Can I use less than four pumps, would it be quick enough or do I need one pump per bag to fill? I also imagine I will need some check valves in the vent/empty lines to prevent draining? Can I run two pumps per bag with one pump being fed from the inlet in the center or rear of the boat & then one pump with a line out to a thru hull that would act as a drain & vent? Better yet can I run a pump or two on the manifold from the inlet then run a pump per bag to empty reducing my cost even more?

Thanks for any help or suggestions.
Old    Tickle (showtime)      Join Date: Nov 2005       06-08-2006, 7:20 AM Reply   
http://www.wakeworld.com/MB/Discus/messages/87668/307524.html?1142447803
Old    Scott LaMarche (fluffnstuff24)      Join Date: Apr 2006       06-09-2006, 12:58 PM Reply   
You need Cepex True Union Ball Check Valves for your intakes. They're about $15/ea and you can get them at a Plumbing Plastic Supply Warehouse

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