Wow, that's an exiting find! You can't beat bottles in a time capsule. That reminds me of a cistern under a cottage. Found three slick bottles on top of the clay, but a probe might help me decide if it's worth digging!
Get back in there ASAP! You just don't find great stoneware like that everyday! I've been itching to dig a nice jug for a few years now ever since I found a couple way back when. Congrats!!
You may be able to rent them(sump pump). I think you can where I am from anyway. It would be worth a shot, beats buying it. Might save ya a few bucks unless you think you will use it later.
Thanks for the thought , I've got a bilge pump and battery, just waiting for a window in the weather it looks like theres one coming up saturday. It might be 30s, In upstate N.Y. thats a warm up.