Thank you for your interest in the EAP Solar Hub. While our tools and content will remain on this website for your reference, currently we are not able to respond to helpdesk inquiries by email or via the website. Skip to Videos All | SPWS Design Steps | Training | SPWS Design Steps, Step 1 - Water Demand SPWS Design Steps, Step 2 - Water Source Capacity & Quality SPWS Design Steps, Step 3 - System Flow Rate & TDH SPWS Design Steps, Step 4 - Pump Selection SPWS Design Steps, Step 5 - Designing the PV System