Next week I am picking up my 210 and will be putting it in the living room against the wall that is our stairs going up to the 2nd floor and to the basement. There is no bracing in the basement under the tank and the basement is finished so I do not know what kind of support is there in the ceilings. I was thinking about hiring someone(an engineer) to take a look at it. Does everyone else brace their floors or is this amount of wieght really negligable?