RO Membrane Pressure Dashboard

The default band is 8–15 bar example feed pressure for brackish-water RO (system-specific; seawater RO runs far higher). Treat it as a sensible starting point — your own specification, regulator, equipment manual or product datasheet sets the authoritative limits, and you can read your true band straight off the worst case those documents allow. Edit the readings against whatever band applies to you.

Clean first. A gradual rise in feed pressure (or drop in permeate flow) at steady temperature usually means foulants or scale on the membrane surface — a clean-in-place (CIP) with the right chemistry (acidic for scale, alkaline/surfactant for organics and biofilm) often restores most performance. Replace only when CIP no longer recovers output, or when salt passage climbs sharply (a sign of membrane damage or seal/o-ring failure, not foulants). Catching the pressure rise early here is what makes cleaning work — neglected scale hardens and permanently cuts membrane life.

Match the interval to the consequence and the rate of change: where an excursion spoils product or risks safety, log continuously (or as often as you can sample); where it is merely informative, daily or per-shift spot checks suffice. The in-range % and excursion count only mean something if your sampling is regular — sparse, irregular readings hide the excursions between them.

Yes — every reading is stored in this browser's localStorage on your device and nothing is uploaded to any server, which also makes the dashboard usable on sites with strict data policies. For shared, audit-grade records across a team or for regulatory retention, export the values into your own system.