BilgePump Sizer

Bilge pump sizing calculator with pump comparison chart, hose sizing guide, and ABYC H-22 compliance checklist for boat builders and surveyors. PUMP SIZING CALCULATOR Enter boat length, beam, hull type, and maximum leak rate. Calculates minimum pump capacity in GPH, recommends pump size, and shows power requirements at 12V or 24V. PUMP CHART Compare common bilge pump sizes: 500 to 3500 GPH with typical head loss curves, boat length range, power draw in amps, and fuse sizing for each capacity. HOSE GUIDE Hose sizing reference: 3/4 to 2 inch hose with maximum flow rate, head loss per foot, and recommended pump pairing. Correct hose sizing prevents pump cavitation and flow restriction. ABYC COMPLIANCE ABYC H-22 bilge pump standard checklist: minimum pump capacity by boat length, required number of pumps (primary plus emergency), float switch requirements, and wire gauge by pump amperage. Built for marine surveyors, boat builders, and yacht owners. Works offline.