1. Water source: Danran water in Qiandao Lake comes from Qiandao Lake, and Nongfu Spring comes from groundwater.

2. Mineral element content: Nongfu Spring is rich in natural mineral elements, while Danran water is low in mineral elements.

3. Water quality: Danran water is the source of urban tap water, and Nongfu Spring does not use urban tap water.

Generally speaking, the indifferent water in Qiandao Lake is different from the water source, mineral element content and water quality in Nongfu Spring. The specific choice of water depends on personal preferences and needs.