The odds are quite high that your pump is about to fail. The usual
mechanism in a deep well submerged pump is that the bearings wear and
rotating parts start to rub against stationary parts and grind away.
Our pump was about 30 years old when it failed. It cost about $1,500 to
pull it out and replace it. The first sign of failure was "crap" that
clogged up filters. Just before it failed the water has some oil in it.
You don't want to wait for a complete failure and you don't want to
contaminate your plumbing with the oil.problem?
** Posted from http://www.teranews.com