What size seacock/thru hull?

[CamB25]

It's been a while since I cut a hole in my hull, but JohnV8r is inspiring me to cut!

I will have a live well and probably a raw water wash down pump. The live well pumps come with a second port to feed the wash down pump from a single seacock/thru hull pick up. My live well is small, so the pump has a 3/4" pipe size.

Should I use a 3/4" seacock or step up to a larger size? https://www.groco.net/products/valves-s ... fbv-valves

The seacock will be located in the old I/O compartment and up from the keel so as not to disturb the flow to the prop area. Can I use a simple thru hull or do I need a scoop? https://www.groco.net/products/fittings ... ries-scoop

Raw water strainer, or is this overkill? https://www.groco.net/products/raw-wate ... arg-series

thanks
Cam

[Charlie J]

cam
I had a 3/4 thru hull for my wash down and live well
no scoop, but I did have a inline strainer before the pump
live well and wash down was controlled by a y valve
I used the shureflow super blaster 5.5 gpm

[CamB25]

Thanks, Charlie. Where was your thru hull located on the boat? Any issues with water flow at speed?

thanks

[Charlie J]

it was at the back stb side close to the transom
at times my pump was running 4 to 5 hrs straight when live linning
no issuses with the flow of water

[Tony Meola]

Cam

I have a 3/4 inch pick up right under the cabin hatch just behind the door. No scoop and picks up water just fine while running.

[Bruce]

As long as the pump is self priming good changes are you won't need a scoop.
But I have seen self priming pumps have issue at speed and if put were turbulence at speed is a factor.

[CamB25]

Great! Thanks for the input, guys!