GRA – Tz offers a full range of borehole drilling and pump installation services to communities and institutions in the Mara Region.
Services and Cost
GRA– Tz offers the following services:
- Geophysical Site Surveys
- Borehole development
- Pumping Test
- Water Quality Analysis
- Pump Installation
- Borehole Disinfection
- Borehole Rehabilitation
COMMUNITY BOREHOLES: These are boreholes owned and maintained by a community.
INSTITUTIONAL BOREHOLES: These are church, school, government and organizational boreholes.
We support all clients to form a water users committee responsible for maintenance, protection and use of the borehole, and to insure its long-term sustainability.
GRA – Tz provides a one year warranty on all BluePumps it installs. Beyond that, we offer pump repair on pumps which we have installed for a low flat rate.
BluePump Hand Pump
Boreholes are usually equipped with the Dutch-made BluePump hand pump, designed specifically for rural African conditions, and made to last 15-20 years with regular, light maintenance. High yielding boreholes can be equipped with submersible pumps at the client’s discretion.
Primary Water Boreholes
We drill hard-rock boreholes to tap clean, protected and abundant sources of water trapped in the fractures and fissures of the bedrock below. The average GRA-Tz borehole is about 50 meters deep.