Groz GP1 - User Manual

Questions and Answers

J
johnnykennedyAug 21, 2025
What to do if air passes directly through my Groz GP1 Water Pump and it doesn't work?
- C
  crawfordwendyAug 21, 2025
  If air passes directly from the inlet to the outlet and your Groz Water Pump doesn't work, it could be due to a few reasons. The Nylon Slider (27) might be jammed or overtight; refer to Drive Section Kit Replacement - Page 8 to check the Clip (28) and tighten it, ensuring the Nylon Slider (27) moves freely. If necessary, replace the Nylon Slider (27), Paper Seal (24), Seat (25), and Slider Guide (26). Another cause could be damaged Seals or O-Rings; inspect all Seals and O-Rings and replace any damaged parts from the Repair Kit. Lastly, a chip or foreign particle might be clogging the discharge coupler. Open the coupler, remove any foreign particles or chips, and reassemble it properly.
B
Brittany LynchSep 1, 2025
Why does Groz Water Pump continue to run after releasing the trigger?
- S
  Stanley ParksSep 1, 2025
  If your Groz Water Pump continues to operate even after releasing the Grease Control Valve (68) trigger, there may be a leakage in the assembly. Check all connections to ensure they are airtight and use a thread sealant. Also, inspect O-rings and seals for damage and replace any defective parts from the Repair Kit.
M
Marvin ArmstrongNov 10, 2025
What to do if Groz GP1 Water Pump is not working or has less discharge?
- G
  Gabriel AdamsNov 10, 2025
  If your Groz Water Pump is not working or has less discharge, there are a few potential causes. First, the inlet pressure may be too low; ensure it is at least 30 PSI (2 BAR). Secondly, the Nylon Slider (27) could be jammed or overtight. Refer to Drive Section Kit Replacement - Page 8 to check for any build-up edge on Clip (28) and tighten it again, ensuring the Nylon Slider (27) moves freely. If needed, replace the Nylon Slider (27), Paper Seal (24), Seat (25), and Slider Guide (26). Another possibility is that the Piston, Piston Rod, or Plunger is jammed. Refer to Pumping Section Kit Replacement - Page 6 to inspect components like the Extension Rod (46), Cylinder (51), Top Coupler (52), Slide Bush (53), and Piston Rod (55). Check for overlap or wear and tear, and replace any defective pa...

Groz GP1 Specifications

General

Model	GP1
Category	Water Pump
Pump Body	Cast Iron
Impeller	Brass
Frequency	50 Hz
Type	Centrifugal
Inlet/Outlet Size	1 inch
Max. Suction Lift	8 meters
Max. Head	30 meters
Power	0.5 HP

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Groz GP1 - User Manual

Table of Contents

Questions and Answers

Groz GP1 Specifications

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