Trillium 10-WSP, Installation, Operation & Maintenance Instructions Manual, Page: 44 / 72

WSP™
DATA SHEET WSP™ SELF-PRIMER PUMPS WSP-D300_10
Rev. 3 01/09/20
© 2019 The Factory
44
line’s cross-section. Also be sure the openings will not allow solids to
pass that are larger than the pump’s ability to handle.
Your WSP3 pump is designed to facilitate spherical solids up to 2½-
inches (50.08 mm) in diameter.
Both the WSP4 and larger pumps are designed to handle up to 3-inch
(76.2 mm) diameter spherical solids.
3. Sealing
Priming, head, and capacity will all be affected by any leak no matter
how small. This is especially true when using applications with a high
suction lift. To avoid leaks, all suction line connections must be
sealed with pipe dope. This will ensure a seal that is airtight and help
maintain pump performance.
When selecting and applying pipe dope, follow the sealing
manufacturer’s recommendations. Be sure the sealant is appropriate
for the liquid being pumped.
4. Suction Lines in Sumps
When installing a single suction line in a sump, keep it away from the
wall of the sump and at a length equal to 1½ times the diameter of the
suction line.
Any liquid flowing into the sump from an unclosed pipe must be at a
distance from the suction inlet to avoid air intake into the sump. Air in
the suction line causes a reduction in pump performance.
When necessary for inflow from an open pipe to be close to the
suction inlet, a baffle must be installed between the inflow and suction
inlet. Be sure the baffle is at a length that is 1½ times the suction
pipe’s diameter. This permits trapped air to be vented prior to any
liquid being pulled into the suction inlet.
If possible, avoid installing two suction lines to a single sump. This
causes the paths of the flow to intersect and impacts performance of
the pumps. Eliminate this possibility by spacing the suction inlets
apart from each other. Keep the length at least 3 times the suction
pipe’s diameter.