Actually, it's quite serious. If you don't have a secondary container and you suffer a fap overload, the discharge may leak out into the room. Then you have a problem on your hands.
Hold on, is this comms engineering or fap engineering? Is it an update of the fap cupboard in the post your room thread? Moriquendi
If it is, I hope they learn from their mistakes and use some sort of absorbent or porous material on the floor to prevent stainage. Or at least employ a cleaner.
Funny thing is, I am designing the leak detection system for that comms room! Pretty sure the specification does not mention the detection of Fap in the floor void though.
Surely the simplest approach would be to employ someone's mum. She would appear at the door moments before a Fap event went critical, probably with a cup of tea or your best friend in tow.
I'm going to blunder in a be a killjoy here, but you may find that you've just posted restricted information on the internet, and find that its ample grounds for immediate dismissal. Or not. But I know I'd have scary men breaking down my door within the hour if I posted something like that, even if it was relatively innocuous.
It's just a tender drawing for some building works. No non-disclosure agreements for this kind of thing.