Tag: frequently asked questions

Mar 04
Diaphragm Lifecycle Cost: CAPEX vs OPEX and Energy Payback

Introduction to Diaphragm Pump Economics For municipal and industrial engineers, the initial purchase price of a pump often dominates the procurement conversation. However, in the realm of positive displacement technology, fixating on the sticker price is a critical specification error. A detailed analysis of Diaphragm Lifecycle Cost: CAPEX vs OPEX and Energy Payback reveals that […]

Mar 03
Rotary Lobe Clogging and Ragging: How to Reduce Blockages

Introduction The operational landscape of municipal and industrial wastewater treatment has shifted dramatically over the last two decades. The influx of non-dispersible fibrous materials—commonly referred to as “flushable” wipes, synthetic rags, and hair accumulations—has created a chronic reliability crisis for positive displacement pumping equipment. For engineers designing sludge transfer systems or primary clarification wasting circuits, […]

Mar 02
Vertical Turbine Seal Failures: Causes

Introduction In municipal water and wastewater applications, the vertical turbine pump (VTP) is the workhorse of high-capacity fluid movement. However, it is also frequently the source of significant maintenance frustration. Industry data suggests that mechanical seals and packing account for over 35% of unscheduled pump repair events. For engineers and plant managers, the challenge is […]

Mar 01
Rotary Lobe Installation Best Practices (Wet Well Dry Pit and Rail Systems)

Introduction For decades, the default solution for moving wastewater and sludge has been the non-clog centrifugal pump. However, as modern wastewater streams become increasingly burdened with fibrous materials (“flushable” wipes) and solids content rises due to enhanced thickening processes, the traditional centrifugal curve is often pushed to its limit. Engineers frequently encounter a critical decision […]

Mar 01
Centrifugal Pumps Lifecycle Cost: CAPEX vs OPEX and Energy Payback

Introduction In municipal water treatment and industrial wastewater applications, the sticker price of rotating equipment is frequently the least significant number on the specification sheet. A surprising industry statistic often cited by the Hydraulic Institute reveals that initial purchase price typically accounts for less than 15% of a pump’s total lifecycle cost (LCC), while energy […]

Feb 27
SCADA Systems in Water Treatment: Automation and Control

Aging assets, tighter regulations, and pressure to cut operating costs mean water and wastewater plants need reliable automation, not band-aid fixes. This article explains how a scada system water treatment deployment is designed, secured, and operated in real municipal and industrial plants, and provides a practical roadmap for evaluating vendors, integrating legacy PLCs, and measuring […]

Feb 27
Metering Pumps Seal Failures: Causes

Introduction In municipal water treatment and industrial wastewater processing, the chemical metering pump is often the smallest piece of rotating equipment with the highest disproportionate impact on process reliability. When a main lift pump fails, redundancy often covers the gap. When a chemical metering pump fails, regulatory compliance regarding disinfection, coagulation, or pH adjustment is […]

Feb 26
Primary, Secondary, and Tertiary Treatment: Complete Wastewater Process

Understanding primary secondary tertiary treatment is where permits, budgets, and operations collide for municipal plants. This article gives municipal engineers, licensed operators, and equipment manufacturers concise, practitioner-focused guidance: quantitative performance ranges, key design and control parameters, sizing rules of thumb, and the retrofit tradeoffs that actually determine project success. Expect actionable monitoring strategies, common failure […]

Feb 26
Commissioning Propeller Pump: Startup Checklist and Acceptance Tests

Introduction to High-Volume Pumping Systems In the realm of municipal stormwater management and large-scale raw water intake, the axial flow (propeller) pump is the workhorse of the industry. However, these high-flow, low-head machines are notoriously sensitive to installation conditions and hydraulic environments. A surprising statistic from reliability studies indicates that nearly 60% of premature failures […]

Feb 26
Horizontal End Suction Pumps: Cast Iron vs Stainless vs Duplex

Introduction One of the most persistent failure modes in municipal and industrial fluid handling isn’t mechanical overload—it is the mismatch between pump metallurgy and fluid chemistry. Engineers often rely on legacy specifications, copying and pasting “Cast Iron Construction” for applications that have evolved in acidity or abrasiveness, or conversely, over-specifying exotic alloys for benign services, […]