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Anode comparison, zinc vs magnesium.

lrg355

lrg355
in This Old Boat

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lrg355

lrg355

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Decided to compare the effectiveness of zinc vs magnesium anodes.  Used my 1993 Sea Nymph GLS 175 with a 2014 Yamaha F70LA.  Origional anodes are zinc and have been on the motor since new in 2014.  Boat stays in the water at my dock at Sandy Pond every season.  I put on one magnesium anode this spring before putting the boat in. 1 season  Magnesium is on the left,  9 season  zinc is on the right with no noticeable corrosion

easy to see why magnesium is recommended for fresh water.20220909_152432.thumb.jpg.04df4dd810c3d92f3c2902d5c96ebf59.jpg

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