on my Grady I have a Shurflo BlasterII 3.5 gpm, bronze thru hull and a ball valve in the stern bilge area. I have a separate livewell pump bronze thruhull & valve.
We do a lot of fishing...tuna fishing...and it is a neccessity...but some of the guys go crazy spraying salt water. If you are in salt and you don't have a blood & bait issue, it might not be worth it.
I never got around to putting one on my V20 but I thought about it alot. We just dipped the brush in the ocean and scrubbed....sometimes a 5 gal bucket dumped on deck...we got by.
A washdown pump is high pressure and not on all the time. It does not double as a livewell pump which is low pressure and can run constantly.
If you plan on having a livewell, you can share the thru hull with the washdown.
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