storing in water this winter(first mistake!!).- Have an accumulation of ice and slush on deck as aft most drain is frozen about a foot below the deck level and water is not running off the deck. Is there anything I can poor down the hose to break up the ice that is blocking the drain, or would you recommend a hair dryer or heat gun near the hose? This hose drains to a thru hull that is about 2 inches above the water line and has no seacock to shut. I am concerned and would like to free up this drain.

Thanks for any ideas.

Rodd