_Foundation_—For the smaller sizes a foundation is not necessary,
other than a good floor. With the large sizes it is advisable to have
a substantial foundation. Concrete, well rammed into place, surmounted
by a capstone, is as good as any. The foundation allows the pump to be
run at a higher speed; a plan showing location of bolt-holes, position
of flanges, and general dimensions, so that there may be no delay in
setting the pump upon arrival at its destination.
[Illustration: FIG. 180.]
_Suction Pipe_—The suction pipe should be as short and direct as
possible, avoiding all turns not necessary. Place a strainer and
foot-valve, Fig. 180, on the suction pipe. It is better for the pump to
have a slight suction except when hot water is pumped, than to supply
the water to the pump under a slight head.
_Discharge Pipe_—Make the discharge piping as straight as possible,
using long bends.
_Packing_—The stuffing boxes should be carefully packed and the gland
brought up firmly against the packing; screwing up the gland by hand
should be sufficient.
Large sizes of suction and discharge pipe are desirable, because the
friction of the water in the pipes thus reduced makes the pump work
easier.