(2) Side-pot-type pumps. In the side-pot-type slush pump, each valve is
in a separate pot or chamber with its own cover (fig. 14a). The advantage of
this type of pump is that all valves and seats are interchangeable, and since
each valve has a separate cover plate, the suction valves may be removed
and cleaned without disturbing the exhaust valves, as is necessary in the
line -type pump. Disadvantages are that grout usually collects in the bottoms
of the valve pots and that the suction and exhaust ports are inconveniently
arranged for cleaning.
(3) Divided fluid-cylinder valve -pot-type pumps. Although the action of
this type of pump (fig. 14b) is not as smooth as that of a line -type pump, its
interior parts are more readily accessible for cleaning. It is somewhat
heavier than a line -type pump built for the same working pressure, the
valves and seats are interchangeable, and the best pumps of this type have
removable cover plates at convenient places for cleaning grout from the in-
t e r i o r passageway.