Shutoff / Flush Valve Install

[Frank Marshall]

The Yamaha incoming hose is 5/8". I used 3/4" for the additional hose I added because I wanted to have adequate water flow for cooling the engines.

With that I found nylon reduction coupler at U.S.Plastic Corp. 5/8" hose to 3/4" hose. You can see the coupler with hose clamps mid picture.

This picture is under the cleanout plugs access cover.


This picture is in the engine compartment.




Tied that into a with a 3/4" hose to 3/4" npt to the pictured junction below and finally back to the Yamaha hose in reverse order. Again, this picture and the next are in the engine compartment.




Make sense? Coarse not.

4 of these: https://www.usplastic.com/catalog/item.aspx?itemid=28691&catid=551
4 of these: https://www.usplastic.com/catalog/item.aspx?itemid=27806
2 of these: https://www.groco.net/wsb-750-series

With this system when I was in saltwater I would unscrew the filter container, fill it with Salt Away, and start the engine until I saw foam coming out the back of the boat. I did not close the valve, just stopped the engine before all the Salt Away was run out.

 

[Julian]

With this system when I was in saltwater I would unscrew the filter container, fill it with Salt Away, and start the engine until I saw foam coming out the back of the boat. I did not close the valve, just stopped the engine before all the Salt Away was run out.

So you ran salt water through the engines with salt away?

 

[I know You know]

The Yamaha incoming hose is 5/8". I used 3/4" for the additional hose I added because I wanted to have adequate water flow for cooling the engines.

With that I found nylon reduction coupler at U.S.Plastic Corp. 5/8" hose to 3/4" hose. You can see the coupler with hose clamps mid picture.

This picture is under the cleanout plugs access cover.
View attachment 75048

This picture is in the engine compartment.
View attachment 75049



Tied that into a with a 3/4" hose to 3/4" npt to the pictured junction below and finally back to the Yamaha hose in reverse order. Again, this picture and the next are in the engine compartment.
View attachment 75050

View attachment 75051

Make sense? Coarse not.

4 of these: https://www.usplastic.com/catalog/item.aspx?itemid=28691&catid=551
4 of these: https://www.usplastic.com/catalog/item.aspx?itemid=27806
2 of these: https://www.groco.net/wsb-750-series

With this system when I was in saltwater I would unscrew the filter container, fill it with Salt Away, and start the engine until I saw foam coming out the back of the boat. I did not close the valve, just stopped the engine before all the Salt Away was run out.

Ok Frank, I will pay you to do mine....LOL. Man that is awesome

 

[Frank Marshall]

I kinda of ran saltwater through the engines. By dumping the saltwater out of the water filter containers, and filling them with Salt Away. You're really pushing the Salt Away through the system, and then shutting down. During the next outing the remaining Salt Away flushes through the system and is then replaced with saltwater.

@I know You know, I retired and have time to dinker. I think that's why half of us have these boats. I would love to spend 8 weeks in Florida, but not working on your boat...LOL.