The structure housing a power-driven pump shall
be constructed so as to permit access to the pump for maintenance
and repair work. The pump house floor shall be constructed of concrete.
On aboveground installations the surface thereof shall be located
not less than four inches above the established ground surface.
The pump, discharge line and accessory equipment
shall be protected against freezing by insulation of structure and
piping and installation of dependable heating facilities, preferably
of a thermostatically controlled type.
Any well vent opening shall be piped watertight
to a point not less than 24 inches above any known floodwater level
but at least 12 inches above the top of the well. Such vent opening
and extension thereof shall be not less than 1/4 inch in diameter,
the extension pipe to be firmly attached. The terminal of the vent
pipe shall be shielded and screened so as to prevent entrance of foreign
matter. Any opening in a pump base shall be sealed watertight.
In all pressure water systems, provision shall
be made for collection of water samples by installation of a faucet
or petcock at the discharge side of the pump.