G-6 how many Thru-Hulls

[RobertJ]

Can someone with factory installed G-6 tell me how many thru-hulls the system uses? I think I saw 3 on another thread,. Buying a new 18 Craz and having the dealer upgrade. Dealer quoted adding 3 more thru-hulls but I want the OEM set up.

Thanks

[jcarter20]

There are 3.


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[korey]

Yes, there are only 3. one hose runs from the thru hull/ball valve to a Y just before the pumps for each pair of pumps. I don't know where you;d have room for 6 and 6 ball valves!

[Slinger]

There are 3. The thru hulls and hose leading to the T should be bigger diameter IMO so as not to restrict flow.
The additional thru hulls quoted maybe for over flows as one(or 2) per sac won't cope. The G6 in Supras have 3 over flows per sac. 9 in total

[schwan]

I feel like I saw a video once where Matt from SC said they tested resistance with 3 through hulls vs other ways and the results were negligible so they stuck with their current design for G6 pumps

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[korey]

I feel like I saw a video once where Matt from SC said they tested resistance with 3 through hulls vs other ways and the results were negligible so they stuck with their current design for G6 pumps

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+1 I saw this too. Or maybe it's in the autowake questions thread. From a manufacturing standpoint it makes a lot of sense not to introduce another size of tubing on the line. That sort of thing is more costly than you may expect.