Best Flushing Agent?

[Limecc]

What's the best flushing agent? Caustic or acidic?
Thinking of running it in a barrel with either white vinegar, brick acid, caustic soda or TFR added. Obviously done using safe ratios.

I read Saltaway's active ingredient is Sulfamic Acid, maybe I should get some of that?

[Pikey Dave]

I use corporation pop, works every time.

[jeffstevens763@g]

Vinegar or citric acid for salt IMO

[mikehhogg]

Am I missing something here. 30years of servicing and flushing outboards and never used anything except fresh clean water,is there something in the water in the UK THAT YOU ARE NOT TELLING US ABOUT OTHER THAN WASTE FROM THE SELLAFIELD PLANT.

[beamishken]

Originally Posted by mikehhogg

Am I missing something here. 30years of servicing and flushing outboards and never used anything except fresh clean water,is there something in the water in the UK THAT YOU ARE NOT TELLING US ABOUT OTHER THAN WASTE FROM THE SELLAFIELD PLANT.

Modern outboards are more prone to salt buildup in the small waterways of the 4 stroke outboards which occasionally need something more aggressive than water to clean them out & avoid potentially overheating issues

[HDAV]

I have used “blu thu” and “salt away” looks impressive but no idea if there is any real benefit .........maybe if you use it every time it may prevent a build up but so many people don’t use it I can’t see it being needed unless you have an issue

[Limecc]

Originally Posted by beamishken

Modern outboards are more prone to salt buildup in the small waterways of the 4 stroke outboards which occasionally need something more aggressive than water to clean them out & avoid potentially overheating issues

Originally Posted by HDAV

I have used “blu thu” and “salt away” looks impressive but no idea if there is any real benefit .........maybe if you use it every time it may prevent a build up but so many people don’t use it I can’t see it being needed unless you have an issue

I don't know the history of the engine so a one-time deep clean will not go amiss.

[jeffstevens763@g]

Originally Posted by mikehhogg

Am I missing something here. 30years of servicing and flushing outboards and never used anything except fresh clean water,is there something in the water in the UK THAT YOU ARE NOT TELLING US ABOUT OTHER THAN WASTE FROM THE SELLAFIELD PLANT.

Mike

this is the top of my reef tank the salt deposit is due to the water effervescing caused by gas exchange due to ammonia, nitrites & nitrates being broken down by bacteria from fish & invertebrate waste.
much the same as in the outboard waterways.
when you stop the outboard and the water runs out it leaves globules of sea water the water evaporates over time or quite swift if the engine is warm and leaves salt/ mineral deposits which build up over time and adhere to each other easier that on new surfaces. depending on where you live tap water can also carry a lot of lime/chalks etc. the only water that doesn't carry these deposits is reverse osmosis water which has been flited, i use this to replace the water lost in my marine tank because the salts are left in the tank after evaporation.
i use citric acid to clean my tank stuff because its harmless but destroys salt/crud build up quickly hence why i use it in the outboards at a ratio of 1kg /30ltrs of tap water.
ive gone on a bit but might help others.