We are currently re-plumbing our 1910 home, which include the removal of the cast iron waste stack. Originally, we had intended to make the tranisition from cast iron to PVC about 3'-0" above the floor in the basement. However, the cast iron pipe had rotted away at the elbow joint just below the concrete slab. We have done the necessary excevation and found the cast iron to be intact just beyond that rotten elbow (just below grade in the basement). How do we now traisition to PVC? Can we make that transition at the cast iron hub below grade? If so, what do we use to connect the PVC and cast iron?

Several hours after washing a load of laundry, I found that I had a sizable puddle coming from what seemed to be under the washer. The washer did not appear to have any remaining water in it. About 2 hours later, I went back into the utility room and found that the water on the floor had increased. I swept up about 6 gallons of water before throwing in the towel for the night. While outside, dumping the buckets of water, I noticed standing water in an area that would be just outside the utility room and the kitchen. It had not rained today. Is it possible that my washer released this much water, and if so, would it have seeped out so gradually, rather than at the time that I used it? Even after bailing for quite some time, I can't get it dry enough to tell if the water is coming from under the washer or from behind the wall. The other strange thing going on is that even though no water is running in the house (the toilets are not running either) I hear a sound of running water in the back of the house, near the bathrooms. I have had problems with pinhole leaks in the copper pipes in the past, but could this create the sound of running water? Unfortunately, I think a neighbor may have borrowed my tool to turn the water off at the meter, so I am stuck until I can call a plumber in the morning. Thanks for any suggestions or ideas you may have.