I have been maintaining a friends tile floor. It wasn't a first rate
job to begin with but it was adequate. About once every three months
he has me come over and patch where the grout has cracked and fallen
out. I have been using the bag of grout that he had left over from the
original installation. I would go out and buy more but it was a some
what unusual pink color. What I have been finding lately is that the
grout doesn't set up poroperly. It looks OK but it is soft and can be
dug out easily with a knife. Does grout go bad sitting in the bag?
It has clumped up some.