This is not a "minor" character. It has an impact upon its world is notable. It needs work. Alot of work. The write up does nothing to answer the questions that immediately come to mind when you read this.
Not enough detail or interesting elements to make it more than a cliche. Sorry. Go to Comment
This is a little cliche, but not bad. If the gnome was played well, with a spunky personality, the PC's could have some fun with him...as long as the GM doesn't overdo it with such characters. Perhaps he could be hired to build something for the PC's, or decide to follow their group around for awhile. Go to Comment
To purify the water from a certain river the monks have carved a section of the river that goes over a stone bed. Through holy carvings of gods, godesses, and holy symbols and then the river flowing over them, it purifies the water making it safe for drinking and/or makes it holy water. For rivers that do not have natural rock bottoms, large smooth stones can be carved and added to the water to fully cover the bottom.