5.- Videos.

Drilling for water is complicated.

Most of the construction is underground and much can go wrong.

If drillers are not paid anything for dry boreholes then all the risk is passed to them.

Good drilling contract management requires an understanding of the uncertainties; stakeholders need to work together.

The four steps to better drilling are:

(i) preparing a procurement plan, (ii) a systematic contract award process, (iii) professional contract management, including regular communication, supervision and timely payment and (iv) monitoring and reporting after construction.

Water supply systems fail for a number of reasons.

One reason is that the borehole was not properly constructed in the first place.

This short film explains the procedures needed to provide a good drilled water supply that can last for many years.

Construction needs to be carried out by a reputable driller and there is need for independent and professional supervision.

Pump failure can be caused by poor quality borehole design or construction.

Meet Henry the handpump mechanic as he learns about the basics of good of borehole siting, design, construction and well development.

Find out about casing and screen, gravel pack, and the sanitary seal and see that silting is one reason that boreholes fail.

Groundwater cannot be found everywhere.

If properly located, a borehole can provide a good supply of water.

If it is not, it will fail resulting in wasted investment.

This short film explains good borehole siting and its importance.