Note-

I have set my charger on the 50 amp setting and left it for an hour with no problems....may have to do with the amount of solution I used, about two gallons.

I did start of with lower settings and "worked my way up".

And yes, like anything using chemicals/electricity/danger, be careful or don't do it!

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If it ain't broke, and you mess with it long enough, it will be.