The elevated storage tank or reservoir offers advantages because it provides a reserve supply of water which is quickly available and also because it is adapted to intermittent windmill pumping. Farm fires constitute a serious economic problem, and the losses therefrom may be reduced with adequate water supply on the farm.

The masonry silo provides a desirable support for an elevated water supply tank.

Masonry tanks will, if properly designed and carefully constructed, give long and satisfactory service.

Block tanks must be lined with a waterproofing material which is plastic and of sufficient thickness to remain intact, notwithstanding expansion and contraction of the walls.

Considering low winter temperatures in Iowa, exposed tanks and supply pipes leading to them should be well insulated.