Owner`s manual

OVERALL DESIGN INFORMATION

SPECIFICATIONS FOR SPA ROOM AREA

Evaporation from spas located inside a temperature controlled room depends mainly on four factors.

• Water temperature • Ambient air temperature

• Humidity in room • Area of water surface

The charts below show the evaporation in gallons for a 24 hour period.

First, select the appropriate chart for your model spa. Choose the room temperature in the ver-

tical column under “Air”. Next, across the row titled “Water Temp F” select the temperature

of the water. In the columns below the water temperature select the nearest common humid-

ity level. Locate the intersection of the row and column you have selected to ﬁnd the gallons

of daily water evaporation from your spa. This amount of water will need to be replaced on a

daily basis. Note: Tables assume spa indoors and without cover.

MP Rx 17: Evaporation Rate Gallons per Day (Based on 88.1 sq. ft. of water surface area)

Water

Temp ˚F

84 86 88 90 102 104

Air 50% 60% 50% 60% 50% 60% 50% 60% 50% 60% 50% 60%

72 13.25 11.91 14.54 13.2 15.96 14.62 17.43 16.09 28.17 26.83 30.3 28.96

74 12.77 11.35 14.09 12.64 15.48 14.06 16.98 15.53 27.69 26.25 29.85 28.4

76 12.29 10.74 13.58 12.06 15 13.45 16.47 14.95 27.21 25.67 29.34 27.79

78 11.76 10.11 13.05 11.43 14.47 12.82 15.94 14.31 26.68 25.03 28.81 27.16

80 11.2 9.45 12.52 10.74 13.91 12.16 15.38 13.63 26.12 24.37 28.25 26.5

82 10.62 8.741 12.01 10.03 13.33 11.45 14.8 12.92 25.54 23.66 27.67 25.79

84 9.982 7.981 11.3 9.298 12.69 10.69 14.16 12.19 24.91 22.9 27.03 25.06

86 9.324 7.195 10.64 8.513 12.03 9.906 13.5 11.38 24.25 22.12 26.37 24.25

88 8.868 6.359 10.19 7.652 11.58 9.07 13.07 10.54 23.79 21.28 25.94 23.41

90 7.88 5.473 9.197 6.79 10.59 8.184 12.09 9.653 22.8 20.4 24.96 22.52

MP Rx 18: Evaporation Rate Gallons per Day ( Based on 95.9 sq. ft. of water surface area)

Water

Temp ˚F

84 86 88 90 102 104

Air 50% 60% 50% 60% 50% 60% 50% 60% 50% 60% 50% 60%

72 14.45 12.99 15.86 14.4 17.41 15.95 19.01 17.55 30.73 29.27 33.05 31.59

74 13.93 12.38 15.37 13.79 16.89 15.34 18.52 16.94 30.21 28.63 32.56 30.98

76 13.4 11.72 14.81 13.16 16.36 14.68 17.96 16.31 29.68 28 32 30.32

78 12.82 11.03 14.23 12.46 15.78 13.98 17.38 15.61 29.1 27.31 31.42 29.63

80 12.22 10.31 13.65 11.72 15.17 13.27 16.78 14.87 28.49 26.59 30.81 28.91

82 11.58 9.535 13.1 10.94 14.54 12.49 16.14 14.09 27.86 25.81 30.18 28.13

84 10.89 8.706 12.33 10.14 13.85 11.66 15.45 13.29 27.17 24.98 29.49 27.33

86 10.17 7.849 11.61 9.286 13.13 10.81 14.73 12.41 26.45 24.13 28.77 26.45

88 9.673 6.937 11.11 8.346 12.63 9.894 14.26 11.5 25.95 23.21 28.3 25.54

90 8.595 5.97 10.03 7.407 11.55 8.927 13.18 10.53 24.87 22.25 27.22 24.57