Manual or Automatic Dewatering Pump for Fall Rain
Choose a manual dewatering pump when the work will be supervised and the operating procedure suits the job. Choose an approved automatic arrangement when water levels must control starting and...
Blog
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Grundfos CR Pump Replacement Wet End or Complete Pump
A Grundfos CR pump replacement may mean buying a complete pump and motor assembly, replacing the hydraulic wet end, or repairing a serviceable component. The right order follows the diagnosed...
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Low Level Drainage Pumps for Water Left on a Flat Floor
A low-level drainage pump is worth considering when the main volume of water is gone but a shallow layer remains on a flat surface. Ordinary basin pumps have intake and...
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Grundfos CM Booster Pump Buying Guide
A Grundfos CM1-2 booster pump is worth considering when the job calls for a compact horizontal pump and its performance curve matches the required flow and pressure. The important buying...
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Choosing a Pump for Basement Floodwater Removal
The right pump for basement water removal depends on what is in the water, how deep it is and where it must go. A pump suited to a collection pit...
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Fall Sump Pump Maintenance Before Heavy Rain
A fall sump pump inspection should answer a practical question: will the complete system remove incoming water when rain arrives? A motor that turns on is only part of the...
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Grinder Pump vs Sewage Ejector Pump: Which Do You Need?
A sewage ejector pump passes soft solids, typically up to about 2 inches, and moves a lot of wastewater over a short, moderate lift. A grinder pump chops waste into...
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Elevator Pit Sump Pumps: Code Requirements and How to Choose One
Elevator pit drainage requirements depend on the applicable code edition and the elevator installation. When an elevator has Firefighters' Emergency Operation, ASME A17.1 calls for a sump pump that can...
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Best Well Pump for Your Well: Shallow, Deep, and Submersible Picks
The best well pump is the one matched to how far down your water sits, not the one with the most horsepower. When the pumping water level is within about...
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Grundfos CR vs CRI vs CRN: Which Material Do You Need?
The short answer: choose a CR for clean, non-aggressive water, a CRI when everything the liquid touches must be 304 stainless steel, and a CRN when the liquid is aggressive,...
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Grundfos CR Pump Troubleshooting: 8 Common Problems and How to Fix Them
Most Grundfos CR problems trace back to four things: no power reaching the motor, air in the pump, the wrong direction of rotation, or not enough pressure at the inlet....
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SPRINKLER PUMP VS IRRIGATION BOOSTER PUMP: WHICH DO YOU NEED?
Ask ten suppliers whether you need a sprinkler pump or an irrigation booster pump and you will get ten answers, because the words on the box do not describe the...
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Grundfos Model Numbers Explained: What CR3-19 and CM5-5 Actually Mean
In a Grundfos CR or CM model number, the first number is the nominal flow rate in cubic metres per hour and the second is the number of impellers, or...
