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dissolved minerals in the water and can be
ap prox i mat ed by 1 psig for each 100 ppm of TDS
EXAMPLE: A feed water with 1500 ppm of TDS
would exert a backward pressure of about 15
psig on the membrane.
Net Pressure Differential =
Feed Water Pressure – Holding Tank Pressure –
Osmotic Pressure
The higher the net pressure differential,
the higher the quantity and quality of water
produced.
Some loss of production is normal when using a
pressurized Holding Tank.
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