CIRISOBU SETTLEMENT, BA
A spring gravity water system safely transports water from a protected catchment area through underground pipes to the community’s storage tanks. In addition, a biosand filtration system improves the water quality.
Spring gravity water system
For a gravity flow system to work properly the pipes must run full of water with no air locks.
Gravity can then be used to move water, over hills and undulations, between the spring and the reservoir tank.
This method works for as long as the spring tank is at the highest point in the system and that there is enough height difference, between the spring tank and the reservoir tank, to give a sufficient flow rate once friction losses have been taken into account.
The distribution network also uses gravity to move water to the taps through thinner pipes.
Numbers speak 🙂
The rural farming community was relying on a temporary dug spring located a few hundred metres away from the settlement.
The spring source would often dry up after periods of no rainfall.
The open catchment was exposed to animals, insects and other water contaminants, making it a high risk source for waterborne disease.
With no means of storing water or distributing it amongst the 14 households, the sanitation standard in Cirisobu settlement remained very poor and families were forced to use dug pit toilets.
With new water supply, the existing flush toilets have become operational.
In total, ten houses, a community hall and two flush toilets have been connected with underground piping to a new source and biosand filtration system.
The promise of safe drinking water and adequate sanitation has been realised with funding from the FIJI Water Foundation and Rotary club donations.