Some Guidance for Construction of Pit Latrines in Flood Prone Areas.

Dear friends, Can we get some suggestions on how to construct safe pit latrines in flood prone areas? We know that pit latrines are simple to design and economic but they are very problematic during rainy season. Most of the time they create sanitation-related diseases in the rainy season due to heavy rains.This is a common but serious problem in Kano plains of the Kenya. I would like to get some suggestions from you people about how to construct safe pit latrines in flood prone area so that all the problems related to these latrines can be prevented. Thank you.