Offshoreonly.com

Offshoreonly.com (https://www.offshoreonly.com/forums/)
-   General Boating Discussion (https://www.offshoreonly.com/forums/general-boating-discussion-51/)
-   -   Fresh water flush options (https://www.offshoreonly.com/forums/general-boating-discussion/351201-fresh-water-flush-options.html)

underpsi68 04-23-2020 11:58 AM

I have this one. Nothing protruding to get scraped on and it's stainless. https://www.hardin-marine.com/p-1374...connector.aspx

F14A water jet 04-25-2020 07:36 AM


Originally Posted by US1 Fountain (Post 4597926)
No valves needed. Connect garden hose to fitting and turn on the water. With motor off, the water will flush outwards to thru the drive. Then simply start the motor with the water still on, and the seawater pump will pull the water thru the motor instead of going out the drive.

The kits I am finding all seem to come with a valve (except Mercruiser) to isolate the drive unit. I would like to eliminate/not use the valve, as it seems to over complicate your simple method above...AGREED?
Does anyone know the material (stainless, plastic, etc...) of the Mercruiser "T" (more like a "Y"?
https://nuwavemarine.com/oem-quicksi...xoCE2MQAvD_BwE
Two other options:
https://www.eddiemarine.com/shop/dri...d-flushing-kit

https://www.diamondperformanceparts....roducts/295-50

DiamondPerformance 04-25-2020 07:57 AM

The valve is there so the cooling water goes one way, into the sea pump/engine, not back out the drive.

Bajaorlando 04-26-2020 05:42 AM

I like the idea of back flushing the drive before I start the motor. Has any used with out the ball valve?
as in my twin engine set getting to that valve is going to be VERY inconvenient

underpsi68 04-26-2020 07:54 AM

Are you running sea strainers?

F14A water jet 04-26-2020 07:58 AM


Originally Posted by underpsi68 (Post 4735607)
Are you running sea strainers?

No...

seafordguy 04-26-2020 09:25 AM

You guys are complicating this too much. Buy the kit that Diamond linked. Install.

Leave the valve on all the time, even when flushing on the lift. The only time to turn the valve off is when you are in saltwater and staying overnight. Under those circumstances turn the valve off before you flush so you don't get seawater in and you can get a nice fresh water flush - the sailboater beside you might not like your Marina flush down but 90% of people at the docks won't care......

F14A water jet 04-26-2020 10:18 AM


Originally Posted by seafordguy (Post 4735636)
Leave the valve on all the time, even when flushing on the lift. The only time to turn the valve off is when you are in saltwater and staying overnight.

Makes sense to me...thanks for simplifying the decision process.

F14A water jet 05-06-2020 09:35 AM

I've order two Diamond standard flushing kits (one for each motor). Man, the raw water pumps are "buried" in the engine bay! Is there some indicator on the pump as to which side/hose is the inlet and which is the outlet? Its hard to see anything down there/upside down.
I want to put the flushing system on the inlet side (drawing water from the drives).
Thanks for all the support for this newbie!
Tom

PremierPOWER 05-06-2020 10:52 AM


Originally Posted by underpsi68 (Post 4735184)
I have this one. Nothing protruding to get scraped on and it's stainless. https://www.hardin-marine.com/p-1374...connector.aspx

That’s funny that Hardin is claiming their engineers designed this. I’ve always known this to be a Jabsco freshwater wash down fitting...

Jabsco 31911-0000 Marine Flush Mount Stainless Steel Water Hose Deck Fitting with Hose Connector (1/2" NPT Female Inlet)


All times are GMT -5. The time now is 07:03 AM.


Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.