Hi, if someone has used the 'wrong' solder to connect water pipes in a
house is there any way of avoiding replacing the piping?

I thought the lead leeching into the water would reduce over time.
However, I don't know if this is true and, if so, how long it would
take for the lead levels to fall to a safe level.

The house this has happend in was build about 5 years ago but the lead
levels were only noticed a year ago (and have since dropped - but not
to safe levels yet)
The piping could be replaced under insurance but would prefer to avoid
the mess if possible.

Any pointers/info greatly appreciated