Mine broke just as I stood up from the toilet. It was sudden and quite a lot of it. Half of it went on the floor before I had the chance to sit back down again. I was 10 days overdue and the waters had light meconium in them (so they were quite yellow-brown, not clear).
The bathroom floor I just wiped up with something - a towel I guess. Then they gushed with every contraction for the next 24 hours. Initially I wore pads, then upgraded to newborn sposies in my undies, and then gave up and just hung out in the bath room. I changed my knickers a lot cos they kept getting leaked on, and the white ones that I wore did get a bit of a yellowish stain, but they were rank ones anyway, so I threw them out after. I think the staining in my case was because of the meconium. And the meconium was only because she was well overdue.
And honestly, although at the time I worried about leaking on the carpet, my DD then spent a good year regularly puking semi-digested breast milk all over the carpet, and now likes to cover it with food, drink, felt pens etc etc. So this time I'm not really too worried. The waters are such a small part of the baby's mess