6. If the electric pump is kept dry, clean and well oiled, it will prove the most desirable and least expensive apparatus to be had for the service.
7. Ascertain the nature of electric current to be used. Direct or alternating? Voltage? (If alternating, note phase and number of alternations.)
8. Also record any unusual or peculiar circumstances connected with the installation or operation of the apparatus; and if so, what?
DOMESTIC ELECTRIC PUMPS.
Fig. 238.
Fig. 239.
In many places the pressure on the mains is insufficient to raise the water to the upper floors or through improperly designed systems of piping the pressure may be so diminished as to make the flow extremely weak or the difficulty in securing proper water supply may be due to inconvenient location with reference to water mains. The automatic electric house tank pumping plant has been designed and perfected to meet these conditions; the electric plant is connected to some power or lighting circuit and provided with an automatic attachment requiring no more care than can be given by any casual attendant. Such an installation avoids the smoke, ashes, dust and objectionable odors that accompany steam or gas plants.