Well I just got my new kohler memoirs cast iron tub and Im about to pay a moving guy a $100 to carry it to the second floor of our house but when looking it over I noticed that part of the drain isnt covered with porcelain. I think the drain should cover this but I wanted to get some opinions on whether this will be a problem or not. It a pricy tub so if its not correct I want to get if fixed. Thanks.