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RO Membrane Performance Calculator

* Special thanks to Boomer from www.reefcentral.com for his help.

This calculator estimates the actual rate of water production for a given reverse-osmosis (RO) membrane. To use it, you should know your membrane's size (in gallons-per-day) along with the temperature, total-dissolved-solids level (in parts-per-million), and pressure (in psi) that it's size was calculated at.

Most membranes in the hobby are rated at 77F/25C, 250ppm TDS, and 60 psi. So if you don't know the specifics for your unit, it may be better to leave these fields at their default values.

Membrane Rating:

Size:
 Gallons-Per-Day (GPD)

At OEM TDS:
 

At Temperature:
 

At Pressure:
 psi

Your Tap Water:

TDS:
 

Temperature:
 

Pressure:
 psi



RO Membrane Performance:
  per



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For more information please contact me as "TheH" on www.reefcentral.com