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  #51   IP: 98.118.103.248
Old 08-09-2012, 02:52 AM
Sabre28#9 Sabre28#9 is offline
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First time flushing, im running up to 200 degrees under load. (Sabre 28). of course we all want the easy way out. Id like to not take the starter or aluternator out to flush. I dont have a lot of room on that side of the engine (sailboat designers). I can easly tap into my raw water strainer and run off a 5 gallon bucket on deck. If I acid wash let it sit for a beer or two what are my chances of sucess without power flushing? Will the acid kick up any sand in the jacket and help flush it out? Also my exaust is low on the stern, I dont think I can get a 5 gallon bucket under the exaust. with at least partly sinking the bucket behind the stern. if i spill and im killing fish and getting fined? how long should i run the engine after to insure flushed out?
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  #52   IP: 97.67.11.26
Old 08-22-2014, 03:15 PM
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Question Acid Capture & Disposal question

I've read a couple of different opinions re: used acid exiting the boat & the environment. I'd don't want to dump the stuff into the canal, at any rate.

I like Dave's method of circulating the stuff w/ the engine off, keeping it sort of a closed system. Also thinking of catching it in a bucket, but have a very low exhaust port so maybe need a fitting, a large ID hose and a 5gal bucket on a line.

Where's the best place to dispose of used neutralized solution? Take it home & (when the wife's not lookin) dump it down the sink?

Leads on this appreciated
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  #53   IP: 205.178.105.141
Old 08-22-2014, 04:14 PM
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The byproduct of the wash should be salt water, and mineral deposits. No environmental catastrophe
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  #54   IP: 174.58.82.173
Old 08-22-2014, 06:30 PM
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romantic comedy romantic comedy is offline
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I used to freak out the students, by drinking neutralized acid.

Take some hydrochloric acid and sodium hydroxide, mix together. You get salt water, that I would drink.

Point is that neutralized acid is harmless.
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  #55   IP: 71.12.227.175
Old 08-24-2014, 08:33 AM
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Well alright, if you can drink it everyone's happy.

Thanks for the chem 101 lesson
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  #56   IP: 99.46.179.179
Old 06-14-2022, 07:55 PM
Booniac Booniac is offline
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Flush Help Please

Hello everyone.
I have been reading and enjoying all the posts and information posted.
I am looking for some help if anyone has any advice.
I read through the whole Flushing thread a couple times but I am still a bit timid. Im a sailor not a mechanic.
Anyway;

I want to do a flush of my engine. I run it in the Sf Bay and have not flushed it once in the past year.
I thought a flushing meant connecting a fresh water hose, forward of the raw water intake and behind the water pump. I have a Tee connection with two ball joints.
I would turn on the engine with the raw water open and then open the valve for the fresh water. I would want to close the raw water valve after a few minutes and have only the fresh water pumping through. I would keep this configuration for a few minutes and then open the raw water again, close the fresh water and then shut off the engine.
This is what I thought a flush was. Was I incorrect?
It sounds like a good way to help prevent corrosion if i can do it after every couple of sailing trips.
But after reading all the threads I have not seen one mention about my concept of flushing my engine.
The threads all mention an Acid flush with Muriatic acid. I am not against this idea at all and it sounds good. The pressure flush, I'm not to keen on. Again im not a mechanic and I don't want to do the wrong thing or strip something.


Here are my actual questions for anyone with knowledge or experience.

1.Can I do the Acid flush and then the Fresh water flush that I mentioned earlier?

2.Is the Freshwater flush I mentioned even a thing? if so; Is the process i mentioned earlier acceptable?


3. For the acid flush; if I put a hose from the Tee to the mixture bucket, forward the Raw water inlet, with the raw water valve shut. Can I just turn the engine on? Will that draw the Acid mix from the bucket? Or will the mixture need to be forced in to the block? or the raw water open the whole time? Im worried that any running of the engine without water could be detrimental.

The Fresh water flushing I mentioned seems like a good concept and it can be done as often as desired because it seems so simple (hook up a hose, close one ball valve and open another). As opposed to a Forced Flush or Acid flush which take tools and a better confidence than I have.

Sorry for this being so long and my lack of experience (im sure ive used the wrong terms somewhere).
But thank you to everyone that was able to read all the way through and contribute.
I really appreciate it.
looking forward to your feedback

Fair winds!
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