I have a brand new one (wonder why... lol.. ) you can borrow if you still need it? 5.5hp, 12 gallon beast... works great...
Similiar thing happened to us. We were fine until last night and then all the sudden it started coming up through the floor. Only an inch or so (but it kept coming/replenishing for a while) in an undeveloped basement but still annoying.
I was thinking of renting it out if it rained again (for extra school money) but for a one of my CalgaryPuck brethren...
Regardless, let me know. I am up in the NW, BTW.
We have met before...
Claeren.