Caution – Pentair Ultra-Flow FlowTM Pump User Manual
Page 4
P/N • Núm/Pte. • Réf. 99340000
4
Rev. G • Rev. G • Rév. G 4-3-00
E. THE SHAFT SEAL.
1.
The Shaft Seal consists primarily of two parts, a rotating member and a ceramic seal.
2.
The pump requires little or no service other than reasonable care, however, a Shaft Seal may occasionally become damaged
and must be replaced.
CAUTION
The polished and lapped faces of the seal could be damaged if not handled with care.
CAUTION
In mild climate area, when temporary freezing conditions may occur, run your filtering equipment all night to prevent
freezing.
SECTION II. TROUBLESHOOTING.
A. FAILURE TO PUMP.
1.
Pump will not prime - too much air. - Remedy:
a.
Check suction piping and valve glands on any suction gate valves.
b.
Secure lid on pump strainer pot and make sure lid gasket is in place.
c.
Check water level to make sure skimmer is not drawing air.
2.
Pump will not prime--not enough water. - Remedy:
a.
Make sure suction lines, pump strainer, and pump
volute are full of water.
b.
Make sure valve on suction line is working and
open, (some systems do not have valves).
c.
Check water level to make sure water is available
through skimmer.
3.
Pump strainer clogged. - Remedy:
a.
Clean pump strainer pot.
4.
Pump strainer gasket defective. - Remedy:
a.
Replace gasket.
B. REDUCED CAPACITY AND/OR HEAD.
1.
Air pockets or leaks in suction line. - Remedy:
a.
See item A.1. of this section, above.
2.
Clogged impeller. Remedy:
a.
Turn off electrical power to the pump.
b.
Remove the clamp that holds the volute to the seal
plate.
c.
Slide the motor and seal plate away from the
volute.
d.
Clean debris from impeller. If debris cannot be
removed, complete the following steps.
(1)
Remove left hand thread anti-spin bolt and
O-ring.
(2)
Remove, clean and reinstall impeller.
(3)
Reinstall anti-spin bolt and O-ring.
e.
Reinstall weir-ring, diffuser, and O-ring.
f.
Reinstall motor and seal plate into volute aligning
with keyway at top of volute.
g.
Reinstall clamp around seal plate and volute and
tighten securely.
3.
Pump strainer clogged. - Remedy:
a.
Clean suction trap.
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FLOW IN GPM
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UF Performance Curves
NSF Listed Pumps
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