Pumps, pressure, and machines that outlived their makers
PSI per Foot of Water: Formula, Table & Head Conversion
Convert water head to pressure without mixing up static and operating conditions.
By Walt Brenner · 20 August 2026 · 15 min readLatest
Boiler Feed Pump Calculation
Calculate hydraulic, shaft, and motor power for a boiler feed pump from flow, head, density, and efficiency, with worked examples at realistic duty points.
How Long Does a Well Tank Last? Lifespan & Failure Signs
In this guide, “well tank” means the pressurized tank that works with a residential well pump, not an atmospheric cistern or bulk-water storage tank.
Variable Speed Well Pump: How It Works, Pros, Cons & Sizing
Updated August 20, 2026
Well Pump Runs but No Water: Safe Troubleshooting Guide
If the well pump is running continuously but no water is reaching the property, switch it off at its breaker or clearly labeled disconnect. Do not leave it…
Weep Hole for Sump Pump: Purpose, Placement & Troubleshooting
A weep hole for a sump pump gives trapped air an escape path and can help prevent air lock. It is not, however, a universal modification. Some pumps prevent…
What Is a Pump Cover? Gym Meaning, Uses, and Examples
In gym slang, a pump cover is a loose or oversized garment worn over workout clothing, usually during the warm-up or early part of a training session. The most…
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AC Hard Start: Symptoms, Causes & When a Kit Helps
Before you add start assist, find out why the compressor is struggling.
Motor Vibrates? Causes, Safe Checks, and Troubleshooting Steps
Motor vibration is a symptom, not a diagnosis. An ordinary electric motor can shake because of the motor, its mounting, the power supply, the drive train, the…
Ejector Pump vs Sump Pump: Differences & Which You Need
A sump pump manages groundwater or rain-related water collected around a foundation, while a sewage ejector pump lifts sanitary wastewater from plumbing…
Sump Pump Keeps Running? Causes, Checks, and Fixes
Start with what the water is doing.
Submersible Irrigation Pump: Sizing, Selection & Buying Guide
Choosing a submersible irrigation pump is not primarily a horsepower decision. It is a system-design decision.
Water Well Pump Foot Valve: Selection & Troubleshooting Guide
A water well pump foot valve is often blamed when a surface pump loses prime, pressure falls after shutdown, or air spits from faucets.
How Much to Get Septic Pumped? 2026 Cost Guide
For routine residential service, about $300 to $700 is a reasonable answer to “how much to get septic pumped?” For an accessible tank with no complications,…
Shallow Well Pump With Pressure Tank: Sizing & Buying Guide
A shallow well pump with pressure tank should be selected as a system—not as a pump, tank, switch, and collection of fittings that merely share a pipe.
Signs of Well Drying Up: 8 Warnings and What to Do
Weak pressure, sputtering faucets, sediment, slow recovery, and unusual pump operation are possible signs of a well drying up. None proves that groundwater is…
Well Pump Maintenance: Checklist, Schedule & Warning Signs
Well pump maintenance is not simply “servicing the pump.” A private well is a connected water-supply system, and reliable performance depends on the pump,…
Float Level Switch: Types, Selection and Troubleshooting Guide
A float level switch can be a practical way to detect a high, low or intermediate liquid level. But the word float does not establish whether a device will…
Well Pump Problems: A Safe Troubleshooting Guide
No water, pulsing faucets, rapid clicking, sediment, or a pump that never stops can look like an obvious pump failure. The same symptoms, however, may…