Pumps, pressure, and machines that outlived their makers
Arizona Pool Pump Off-Peak Savings Before an Upgrade
Compare APS and SRP pump schedules, calculate time-of-use savings, and see whether retiming should come before a variable-speed replacement.
By Walt Brenner · 31 August 2026 · 8 min readLatest
Audi EA839 Water Pump Lawsuit: Quote Spread and TSBs
Compare Audi EA839 water-pump quotes, review models named in Larr v. Audi, and see what the reported bulletins and proposed lawsuit establish.
How to Choose a Ball Non-Return Valve
Match flow and differential pressure to orientation, wetted materials and connections, then verify installation requirements and troubleshoot by symptom.
Jeep Wrangler Power Steering Pump Recall: What Gets Fixed
Check whether a 2021–2025 Wrangler, Gladiator, or 4xe is in the recall range, what dealers replace, and why parking outside beats a pump swap.
Well Water Air Injector Pros and Cons: When It Fits
See when it suits compatible iron or sulfur, plus how water chemistry, pump and drain capacity, backwash, noise and maintenance affect the choice.
Reducer Bushings: Types, Sizes, Selection & Installation Guide
A reducer bushing is a compact fitting used to connect pipes, fittings, or equipment ports of different nominal sizes. Selecting one correctly requires more…
Voltage Sensitive Relay: How It Works and When to Use One
A voltage sensitive relay can make a dual-battery system seem simple: start the engine, charge both batteries, stop the engine, and isolate the starter…
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Hydraulic Pressure Switch: Selection, Types, Testing & Specs
A hydraulic pressure switch cannot be selected safely or reliably from its PSI range alone. The switch must trip and reset at the required pressures, remain…
TEFC Motor Meaning: Cooling, Protection, and Uses Explained
TEFC stands for “Totally Enclosed Fan Cooled”: it describes an electric-motor enclosure and cooling arrangement in which ambient air does not circulate freely…
Cost of Motors per HP: Price Examples, Formulas & Calculator
No supported universal or representative industry-average cost of motors per hp is available from the cited sources. For an industrial electric motor, cost per…
Normally Closed Solenoid Valve: How It Works and How to Choose
A normally closed solenoid valve is closed when its coil is de-energized and opens when energized under the model’s specified electrical, pressure, flow-…
Can I Still Buy a Single-Speed Pool Pump Motor?
Check your motor’s total horsepower against the 2025 standard, delayed 2027 enforcement window, and March 2029 cutoff before buying.
DOE Motor Rule 2027: What Changes for Pump Motors
Determine whether a new or replacement pump motor falls under the 2027 DOE efficiency standard and how the limited 2029 enforcement policy applies.
VW Atlas Water Pump Settlement Claim Deadline
Check an Atlas or Atlas Cross Sport VIN, estimate 80% repair reimbursement, and prepare the records needed for the October 5, 2026 postmark.
Multistage Centrifugal Pump Specifications, Features & Applications
How to read, compare, and apply multistage pump data
Wet Switch Flood Detector: WS-1 Guide, Specs & Fit
The DiversiTech/Asurity WS-1 Wet Switch Flood Detector addresses a specific risk: condensate or drain-leak water reaching a monitored area around ducted HVAC…
Ideas for Sump Pump Discharge: Choose the Right Yard Drainage Setup
A working sump pump does not automatically mean a protected basement. If the exterior discharge releases water where it can flow or seep back toward the…
Water Pressure Tank Problems: Symptoms, Tests, and Fixes
Water pressure tank problems are easy to misdiagnose. A pump that starts whenever you open a faucet may have lost effective tank drawdown, but low pressure,…
NPSH Thread: Sizes, Compatibility, NPT Differences & Identification
An NPSH thread can be easy to confuse with NPT pipe thread or NH/NST fire-hose thread. Two couplings may share a nominal size, look similar, or even begin to…