ZRr6 220 Electrical short!!

[guyhawk]

Hi, I have been using my 220 all summer with no problems, all of a sudden both batteries are getting drained for no reason when only being left for a couple of days, when I pull out the batteries I have noticed that when I attach the positive terminal it is sparking alot more than it used to and can only assume that I have a short some where, does any one know of the most likely cause, could it be the bilge pumps even though they are not set to auto?

Any suggestions would appreciated,

[ski4evr]

You could put a DC ammeter in series with the battery and your pos cable (watch polarity on the meter) and start pulling fuses until the current drain goes away.