Did you ever figure out exactly where the water was coming from? Was it backing up a drain/drains, or coming in through the wall or low spots in the floor? We have had several instances (mebbe 4 times over 16 years in the house) where water comes up through the floor drain in the basement (lowest drain in the house) when the water is used, then kind of slowly goes away, there is an interval where we run water and it all seems to be going away, then the flood waters rise again. Turns out to be caused by a obstructed sewer line OFF of our property. The water is able to drain VERY SLOWLY, and then it takes a bit of use to fill the line again back up into the basement. You may consider calling the water company, and have them check to see if their line is clear.
In each case, the water company cleared the line by running a major industrial rooter-machine down our drain line. At no cost to us, but we were stuck with the clean-up.
They must have gotten tired of coming out and cleaning the line, last summer WSSC came and replaced part of their line under the street. The construction equipment shook our house like crazy, and they left the road uneven for a few weeks after they got done.
We had a problem the first year here from a combination of leaves blocking the sewer right past our house and tree roots in the lines. After the pumping and clean-up got a check-valve put in the sewer line right away.
We still have to have the pipes drilled once a year because of the damn tree roots, but at least the problem now tends to be of the order "things drain veerrrry slooowwwly" or "the shower backed up into the basement" rather than "the sewer decided to flow into house instead of down the street".
water source?
In each case, the water company cleared the line by running a major industrial rooter-machine down our drain line. At no cost to us, but we were stuck with the clean-up.
They must have gotten tired of coming out and cleaning the line, last summer WSSC came and replaced part of their line under the street. The construction equipment shook our house like crazy, and they left the road uneven for a few weeks after they got done.
Re: water source?
We still have to have the pipes drilled once a year because of the damn tree roots, but at least the problem now tends to be of the order "things drain veerrrry slooowwwly" or "the shower backed up into the basement" rather than "the sewer decided to flow into house instead of down the street".