A seawater reverse-osmosis megaplant is a hall of white pressure vessels racked on steel — hundreds of identical horizontal capsules fed by a flow scheme that fits on a single drawing plate. This system documents the plant the way its builder does: membrane trains as process lines, brine outfall as dispersion contours, water allocation as flat zone blocks.

The palette and type come from IDE Technologies' own house system — the firm behind Sorek, Hadera and Carlsbad. A pale blue ground, a navy line weight that never varies, a cyan for permeate and feed, and a coral reserved for the brine side. Assistant carries the text because the drawings and the door signs are both bilingual.