[GuyBFF]

Battery effect is the transfer of molecules from a negative voltage (aluminum) to a positive (copper) in a conductive medium. This pits the aluminum and coats the copper with aluminum (clogging flow) and possibly eating the aluminum. Exactly how copper and lead seperated by sulphuric acid starts your can in the morning.

You could regularly connect a battery charger to your rad / waterblock and reverse the effect temporarily like your cars alternator, or take a couple steps.

First, for the effect to happen it needs a conductive medium, so use distilled water. However water becomes conductive as soon as particles become suspended in it.

Secondly, use a product which coats the metals against galvanic corrosion (battery affect) like glycol antifreeze or water wetter or a bit of both. This works in cars all the time, but I still prefer not to mix metals if possible.

On another note, you could also use a small piece of zinc as a sacrificial metal. What happens is the zinc is "eaten" before anything else, which keeps the aluminum from harm. Only problem is although this works for boats, the zinc may still clog everything when its "eaten".