Dont do a gfci breaker, do a gfci receptacle instead.... Unless the plug will be behind your tank. That will save ya a hundred bucks or so. More so when it becomes weak and needs to be replaced. As a side note, yes ya can run a total of 12 devices off a 15amp circuit... Unless you know its intended purpose. Hopefully you put t-slot receptacles on your 20 amp circuit in your garage, your insurance company may give ya the boot if you ever have an issue out there.
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Do you smell that? Just waaalk away...... sloooowly
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