WhisperFlo Pump

Failure to Pump.

• Pump will not prime – too much air.
  • 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.
• Pump will not prime–not enough water.
  • 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.
• Pump strainer clogged.
  • a. Clean pump strainer pot.
• Pump strainer gasket defective.
  • a. Replace gasket.

1	070711 V20-373	Clamp band assembly, SS, WF/AQ (old style) Used on pumps manufactured before 11-98.
	357199	Clamp, Cam & Ramp, plastic, almond, WF Used on pumps manufactured after 12-17-99.
1A	071136	Knob, plastic only Used on pumps manufactured before 11-98.
2	070795 V20-371	Cover, clear, AQ/WFE pump (old style) Used on pumps manufactured before 11-98.
	357151 V20-390	Cover, clear, WFE pump Used on pumps manufactured after 11-98.
3	071422 V20-370	O-ring, AQ/WFE cover Used on pumps manufactured before 11-98.
	350013 V20-389	O-ring pot flange WFE cover Used on pumps manufactured after 11-98.
4	070387	Basket WF AQ, WFE Made by Pentair
	V20-200	Basket Made by Val-Pak
5	070430	Bolt, 3/8 -16 x 1-1/4 hex cap 18-8 SS, 4 req.
6	072184	Washer, flat 3/8″ ID x 7/8″ OD .05 Thk 18-8 s/s – 3/8 x 13/16 o.d. SS, 6 req.
7	070431	Bolt, 3/8 -16 x 2 hex cap 18-8 SS, 2 req.
8	071403	Nut, 3/8, 16 brass nickel plated, 2 req.
9	071445	O-ring parker No.2-265, WFE pump Seal Plate O-Ring Used on pumps manufactured before 6-94.
	357102	Almond gasket for seal plate
10	357149	Volute, WFE pump & pot Seal Plate, Almond
11	071444	O-ring #238 parker, WFE pump Diffuser O-ring
12	071660	crew set, 4-40 x 1-1/8 WFE sckt cap 18-8 SS, 2 req.
13	072928	Diffuser assembly, WFE-12, 3 HP only
	072927	Diffuser assembly, WFE-2, 1/2 HP 2.5 HP
14	071652	Screw, 1/4, 20×1 LH phillips pan MS 18-8 S/S Impeller Screw
15	175713	Impeller, washer gasket
16	071734S	Seal PS-1000
17	070429	Bolt 3/8 16 x 7/8 SS hex hd., 4 req.
18	350201 074564	Seal Plate
19	070927	Foot WF, pump motor support almond
20	070929	Foot insert WF pump almond
21	071657	Screw, 1/4, 20 x 1 in.hex cap 18-8 SS, 2 req.
22	071406	Nut, 1/4, 20 hex. hd. SS, 2 req.
23	072183	Washer, flat 1/4 x 5/8 20 GA thick 18-8 SS, 2 req.
24	071131	Plug drain WFE, almond, 2 req.
25	192115	O-ring, drain plug 2 req.
26	357149	Volute, WFE pump & pot Seal Plate, Almond
27	075232S	Motor 0.5 HP Energy Efficient!
	071313S	Motor 0.75 HP Energy Efficient!
	071314S	Motor 1.0 HP Energy Efficient!
	071315S	Motor 1.5 HP Energy Efficient!
	071316S	Motor 2.0 HP Energy Efficient!
	071317S	Motor 3.0 HP Energy Efficient!
28	073126	Impeller 0.5 HP
	073127	Impeller 0.75 HP
	073128	Impeller 1.0 HP
	073129	Impeller 1.5 HP
	073130	Impeller 2.0 HP
	073131	Impeller 3.0 HP