Indoor plumbing

This all was started by a young shifter noble on Owhua, named Arald Balfour. Arald was fed up with having to leave his home to use the toilet, especially in the cold of winter. He was also frustrated that his servants had to spend so much time fetching water from the well, when ever anything required water.
Finally one night after a particularly cold trip to the toilet Arald had the thought of creating a conduit from the well to the house. Arald was unsure how to go about this so talked to his good friends Dernet, a magic user, and Marric a tinker (inventor, builder etc.). Together they see what they could do to improve the situation and implement Arald’s idea.
After several trials and error, trying different materials, and magic effects they finally get the water to the house safely and clean. Once there they were able to quickly work it into the house mostly to the kitchen and a few other areas.
It wasn’t long before some other noble, and high class families on Owhua noticed Arald Balfour’s new addition. The addition that he called plumbing. Many starting asking for the plumbing to be added into their homes. As a result Arald, Dernet, and Marric started a business to implement plumbing.
Soon there were many different cities on Owhua that wanted to help improve the water supply in the cities, which had a ripple effect of the many travelers and merchants talking about this new plumbing taking it to the rest of the continents.
The effect this had on the world has been drastic. Improved hygiene of the cities, and personal. Less time being spent on getting water. One of the biggest impacts had been new source of jobs and many different inventions to take advantage of the plumbing.