Wet-N-Frugal's X22 Projects: A Simple Garden Hose Attachment.

[Wet-N-Frugal]

[Ktown]

Wow, I'm glad you bought a Toyota.  Your posts are incredibly useful.  I for one appreciate that you go through the entire process for those of us that don't have much experience with your modifications.  Again, thanks and great job.

 

[probablecause]

Don't you need a gate valve on it to keep the water from escaping to the intake below the boat?

[Wet-N-Frugal]

Gate Valve not needed.
Moderate inflow from the hose with keep the Filter Bowl full of water, which is adequate for the sea-water pump to draw from.
The beauty of this approach is the hose primes the sea water pump, yet it won't over-pressurize the system because it spills out the intake.

Typically I only run the engine in idle.  And then on occassion will rev the engine, in short bursts.

After starting the engine, in idle, it takes upwards of 20 - 30 seconds for the exhaust manifolds to fully charge. Then water expelled from the exhaust ports is cyclic as the water levels inside the manifolds charge and spill.

-WNF