Part of reason I have taken a while to post is we had our first Flood!
All fine at midnight by morning 3 to 4" had arrived in basement.
We are still dealing with it, the lovely previous owners took it into there heads to glue the carpet down! its taken days to get up, needless to say you can imagine what we said about said prior owners!!
Sump pump had not coped well apparently, try getting a Plumber, even ones I knew of, all busy, until 5 days later!
I had been wanting to sort and throw away stuff in basement, so I guess this was the incentive to do it! poor garbage guy loved us!