![Drinking Water Supply Scheme (Gravity Flow) 1 Drinking Water Supply Scheme Gravity Flow 1](https://excel.civilmdc.com/wp-content/uploads/2021/12/Drinking-Water-Supply-Scheme-Gravity-Flow-1.png)
Gravity flow water distribution systems are reliable and cost effective over pumping systems as no external power is required to maintain the flow. … Also developed is a criterion for the choice between the pumping and gravity systems where the elevation difference is marginal.