We have been using SaltAway to help keep our sea water
system, AC heat exchanger
system and heads-clear for several years and the product has proven quite satisfactory. We keep a very dilute mix in plastic squeeze bottles in the heads and once they have been pump clear after use, add a few squirts to the bowl and pump that iinto the lines. With this, the lines have remained clear and joker valves clear and pliable as we have continued to inspect them at routine intervals. As for your engine, I assume you have a raw water
filter. If so, throughly soak a small piece of spong in SaltAway and place it in the filter basket that normally traps debris. Then, run the engine for a moment or two, until you see evidence of the material in the raw water exhaust
flow. With that, shut down the engine and let it sit overnight to allow the SaltAway to work. It will do so even in salt water
. The folllowing day, start and run you engine until all evidence of the material has disappeared and then open and remove the spong from the debris basket on your raw water filter and you're good to go.