swatski
Jetboaters Fleet Admiral 1*
- Messages
- 12,806
- Reaction score
- 18,572
- Points
- 822
- Location
- North Caldwell, NJ
- Boat Make
- Yamaha
- Year
- 2016
- Boat Model
- AR
- Boat Length
- 24
Yes, those can run simultaneously, and no concern as long as certain rules are followed.Do all those pumps run simultaneously? Concerned at all about all that draw on the battery at once? I’ve been waiting to fill my integrated bags first then shut off pump before running my aux pump. Would rather do it at the same time, but guess I wasn’t sure if I should. I’d only be talking about 2, currently, though.
Those pumps can run simultaneously, but should not be simultaneously started. The amp draw on startup is momentarily many times higher then in steady-state and could damage and/or deplete a battery, even blow fuses.
As a rule, I keep the engines (or engine) running at high idle during pump operation - enough RPM to give me 13+ V reading on the voltmeters. That saves battery power and speeds up the pumps, a win-win.
With my intakes I do not like using "No Wake" mode for the above even though it would be ideally suited RPM-wise. I notice there is a lot of air mixing at the pumps when "No Wake" is activated and that air tends to enter the intakes which is not ideal for Johnson pump impellers. So - I set the throttles to run at "high idle" of about 2,000-something RPM, just enough to get some juice flowing from the stators.
Slowly moving forward helps escape exhaust plume.
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