I know that it is a Bad Thing to cover up anything permanently when dealing with renovations. (electrical boxes, shutoff valves, etc)
I have 3 floor drains in the poured concrete floor of my (currently) unfinished basement, and I would like to install a subfloor of some kind. I'm assuming that I can't just cover them up with permanent sub-floor, even if I use a system that allows for the drainage* of any 'accidental' water, right?
If nothing else, I would think that I would need some kind of access just to make sure the trap stays full... Althought it would certainly make everything easier if I didn't have to.
* - DriCore or the like