Ray - the production from an RODI sytem is determined by the capacity of the membrane, which is expressed in gpd - or gallons per day. Common membrane capacities are 24 gpd, 36 gpd, 50 gpd, 75 gpd, 100 gpd, and 150 gpd.Originally Posted by RayAllen
For any given membrane, it will produce more water with 1) warmer water, and 2) higher pressure. We have a calculator on our website where you can enter your water temperature and pressure and see what your membrane should be producing under those conditions.
The most common cause for production slowing over time is clogged prefilters ("prefilters" are all the filters that treat the water before it gets to the membrane). You'll need a pressure gauge installed after the prefilters to detect this.
Russ
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