Green stuff from water leaks?

[jrohrbaugh]

I am getting set for a haul out and in advance of my trip to the Abaco Islands in April. I've been off the boat for some time and when I started to work on clean up I found all these green corrosion telltales. Looks like slow leaks over time. Around water pump and Heat Exchanger ends and fittings.
Any suggestions?

Thanks again,
Jamie
S/V Soixante Hull #444

[Chips Ahoy!]

There are rubber o-ring gaskets on each side of the heat exchanger. Time to replace them!
Also, a good opportunity to clear out the exchanger ports.

[jrohrbaugh]

I've ordered the replacement gaskets and the new covers, etc. Let's see if that fixes the problem.
Thanks for the reply

[wolfe10]

Jamie,

Electrolysis substantially increases the corrosion/oxidation.

Check for both AC and DC current-- one probe on the engine component, the other on something in the water. Just dangle one end of a wire (strip an inch or so) in the water and bring the other end to the engine so you can use your meter there.