So, my kids gave me a White Oak 5 gal. Cask for Christmas. Instructions said to fill with hot water and wait for the leaks to seal. This I have done over the last two days. No leaks. However, the water level continues to lower. Is it soaking up the water? Is that good? I will be making a bourbon stout (Dragons Milk) soon and want to condition the beer in the cask after fermentation. What would my next step be to prepare the cask?