If the water isn't being naturally absorbed, you'll need to do it by hand. If you can do it with small buckets, cans, or the like, have someone outside to dump the water for ya. Or, you can rent small WetVacs from Rental Places. Just do your best to keep out the 'solids' if you go this route. Get a long hose and keep the vac outside (if you have a vent). This way, your assistant can dump the vac when it fills.
Other than that, not much else I can offer. My best to ya and hope this helps.