Find the right calculator for the questions our specialists field weekly — pipe sizing, storage capacity, electrical conversions and water-quality checks. Sensible defaults, every field editable, every output in the units you work in.
Hydraulics (Hazen-Williams with collapsible sub-main and lateral tiers), NPSH context (altitude, fluid temperature, suction lift, suction-line friction), pump duty (hydraulic kW → shaft kW → electrical kW with next-standard IEC motor recommendation) and an optional solar PV section pre-filled from the workflow above — all in one workspace, no re-typing across tools.
Output is a supplier-ready specification sheet you can paste straight into a tender pack: design flow, total dynamic head, motor size, NPSHr ceiling, site altitude and fluid-temperature reference, all on one PDF page.
Used by lodge GMs sizing replacement pumps, municipal engineers specifying booster sets, and procurement officers building tender packs against a single defensible duty point.
The Pump sizing — full duty-point workflow workflow is reserved for verified engineering and procurement contacts. We open it on request — typically within one working day — so each user is on file with us and gets useful follow-up if their numbers flag something we can help with.