Total Dynamic Head Calculator
Combine elevation, pressure and losses.
Use tool →Tools index
Tools
Working calculators, planners, checks, selectors and troubleshooting across pump, well, storage, irrigation, greywater and treatment systems.
Every linked resource is implemented. The initial plan and validated greywater expansion contain no inactive or empty future pages.
Pipe Friction Loss Calculator
Compare Hazen–Williams and Darcy–Weisbach.
Use tool →Water Pipe Size & Velocity Checker
Screen velocity using actual internal diameter.
Use tool →Pump Power & Efficiency Calculator
Estimate hydraulic, shaft and input power.
Use tool →Booster Pump Duty Point Estimator
Define preliminary flow and boost head.
Use tool →Pump Curve Duty Point Comparator
Interpolate and compare up to three candidates.
Use tool →NPSH Available Calculator
Estimate suction head above vapor pressure.
Use tool →Pump Operating Cost Comparator
Compare energy and annual cost scenarios.
Use tool →Low Water Pressure Troubleshooter
Prioritize measurements and likely cause groups.
Use tool →Well & Borehole Pump Sizing Planner
Build a duty point from pumping level, pressure and losses.
Use tool →Well Yield vs Demand Checker
Compare sustained source production, daily demand and peak storage.
Use tool →Pressure Tank Sizing Calculator
Convert required run time into drawdown and nominal tank volume.
Use tool →Pump Short-Cycling Analyzer
Compare observed starts with a simple drawdown cycle model.
Use tool →Water Storage Tank Sizing Planner
Balance outage demand, refill, reserve and usable volume.
Use tool →Rainwater Harvesting Yield Calculator
Estimate roof collection after runoff and system losses.
Use tool →Rainwater Tank Days-of-Supply Simulator
Step through 365 days of monthly rainfall, storage and demand.
Use tool →First Flush Diverter Sizing Calculator
Convert a local diversion rule into required volume.
Use tool →Available Water Flow Test Calculator
Turn bucket or meter trials into a measured flow.
Use tool →Sprinkler Zone Capacity Planner
Check flow and pressure margins before grouping heads.
Use tool →Sprinkler Precipitation Rate Calculator
Convert discharge and layout to applied depth.
Use tool →Irrigation Runtime & Water Depth Planner
Plan runtime, cycles and applied volume.
Use tool →Drip Irrigation Flow & Zone Calculator
Total emitters and divide feasible zones.
Use tool →Irrigation Pump & Zone Matcher
Screen one pump duty condition against one zone.
Use tool →Sprinkler Low-Pressure Troubleshooter
Prioritize irrigation-specific evidence and next measurements.
Use tool →Water Softener Sizing Calculator
Estimate working capacity from measured hardness, use and reserve.
Use tool →Softener Salt & Regeneration Planner
Plan regeneration interval, salt, water and optional cost.
Use tool →RO Recovery & Reject Water Calculator
Balance feed, permeate and reject streams.
Use tool →RO Production vs Demand Planner
Compare corrected production, demand peaks and usable storage.
Use tool →Media Filter Loading Rate Calculator
Calculate service and backwash loading from actual filter area.
Use tool →Chlorine Dose & Solution Volume Calculator
Convert a user-supplied target dose into active mass and solution volume.
Use tool →Disinfection Contact Time Calculator
Calculate nominal time, effective time and CT from measured residual.
Use tool →Water Treatment Train Selector
Build test-led candidate stages without declaring potable safety.
Use tool →Greywater Supply Calculator
Estimate measured shower, bath, laundry and bathroom-basin water available for reuse.
Use tool →Greywater Irrigation Demand Planner
Compare reusable supply with ET, rainfall, plant and efficiency-based landscape demand.
Use tool →Laundry-to-Landscape Zone Planner
Distribute one laundry event across a practical whole-outlet range.
Use tool →Greywater Surge & Basin Checker
Screen delivered event volume against entered void capacity and infiltration.
Use tool →Greywater Reuse Savings Calculator
Estimate annual water and sewer savings and simple payback from local tariffs.
Use tool →Practical boundary. These resources support preliminary decisions and transparent checking. They do not replace laboratory testing, manufacturer data, certified product claims, local requirements or project-specific professional review.