Lin Jin was sitting by a pond behind the headquarters' main buildings. It seemed like he was enjoying the scenery when in fact he was toying with something in his hand.
The water reservoir scale.
This was a piece of treasure packed to the brim with water spiritual energy. At the present stage, not only could it enhance Lin Jin's Carrier Cloud but when he held it in his hand during cultivation, he could also absorb water energy from the scale to nourish his physical body. Also, if he got hurt, the scale was able to speed up his recovery process.
Of course, the benefits didn't just stop there. Though, Lin Jin's current level meant that he couldn't fully utilize the scale's powers.