Culligan GoodWater Machine DrinkingWater System Specifications download pdf (Page 21)

PERFORMANCE AND TECHNICAL INFORMATION / 19

Checking Efficiency

Measure and record the product water flow and the concen-

trate water flow. Calculate the percent recovery as follows:

Recovery = x 100%

If the concentrate flow rate for the example system is

measured at 66 gpd:

22 gpd ÷ (22 gpd + 66 gpd) x 100% = 25% Recovery

Product Water Flow

(Product Water Flow + Conc. Water Flow)

Continuing the previous example:

60 psi x 0.6 = 36 psi

Measure the storage tank air pressure using a tire gauge (w/

1 psi increments) and read the corresponding storage vol-

ume. If our example system is equipped with the medium tank

containing 5 psi air, from the graph (Fig. 14) we see that it can

store approximately 2.7 gallons.

STANDARD TANK

2 Gallon Nominal

Tank Pressure, psi

1.0

2.0

3.0

10 20 30 40 50 60

Tank Volume, Gallons

MEDIUM TANK

3 Gallon Nominal

Tank Pressure, psi

1.0

2.0

3.0

10 20 30 40 50 60

Tank Volume, Gallons

LARGE TANK

9 Gallon Nominal

Tank Volume, Gallons

Tank Pressure, psi

10 20 30 40 50 60

FIG. 14

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 27

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Culligan GoodWater Machine DrinkingWater System Specifications Page 21