If it was a copper pipe that corroded ... and you think the rest of the pipes are of the same age. Then it may be worth investigating the condition of the other pipework.
If you happen to have a water meter fitted...check that no water is being used in the house (no taps running, washing machine off etc.),
Have a look at the meter for a couple of minutes. If your meter is not going round ... then no water is leaking...
It would show on the meter if any water was leaking under floor boards, or anywhere else..
If you haven't got a meter ... you will need a pry bar to get the floor boards up..!
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