Spark when connecting to home outlet

Hello,
     Newbie here, recently winterized our new(late August) 179, did not get enough trips in but loved it and hoping for an early spring. I have not yet gotten organized enough to handle battery storage so following a few posts here I plan to plug it into 110v outlet in garage regularly to maintain battery. I have limited garage space but am working on getting it inside and on a maintainer for the winter. My question is, should I be concerned when I see a spark as I plug it into the garage outlet? I start by connecting 30A cable to Pod, then to extension cord, then to adapter to wall outlet. I always get a spark, or crackle. No issues with wiring, has been checked, just initial spark when making final connection. I don't have this issue when camping as I make connections before flipping switch "on" at power post. I don't have a switch on outlet at home, would require trip into house to flip switch on electrical panel. Just wondering if this is a concern. Would it help if I switch off the main breaker in the pod when I am connected?
    
Thanks for any wisdom.
Dan

Wouldn't hurt a thing to shut off the main (30A) breaker in the pod when plugging in/unplugging. Then turn it back on once connection is made.

Originally posted by TheBum Originally posted by furpod Wouldn't hurt a thing to shut off the main (30A) breaker in the pod when plugging in/unplugging. Then turn it back on once connection is made. That really just transfers the spark to the breaker. I suspect the plug would tolerate more connections and disconnections than a breaker will. Breakers are not designed to be switched often.

Do you not shut off the breaker at the pedestal every time you hook up at a campsite?

I noticed the same thing when I plugged into 110v with dogbone adapter and my Progressive Industries surge protector, so I contacted Progressive to ask them and they told me to ALWAYS flip the breaker at the house panel when making electrical connections or it could void my surge protector warranty if I don't. 

Originally posted by furpod Originally posted by TheBum Originally posted by furpod Wouldn't hurt a thing to shut off the main (30A) breaker in the pod when plugging in/unplugging. Then turn it back on once connection is made. That really just transfers the spark to the breaker. I suspect the plug would tolerate more connections and disconnections than a breaker will. Breakers are not designed to be switched often. Do you not shut off the breaker at the pedestal every time you hook up at a campsite?

I do shut off the breaker at the pedestal every time I hook up at a campsite, my issue is at home where I don't have convenient access to the breaker serving my garage outlet. Doesn't look like much of an issue given the posts here? I may just suffer the trip to and from the panel to be safe. I'll be putting in a 30A connection outside my garage this spring which will have a breaker like in the campgrounds.

Looks like the question sparked a good discussion, this is what I appreciate most about this forum. I always get a lot out of this forum, best forum I've been on for any topic, campers, smokers, computers, etc.

Thanks everybody.