TM 10-4610-232-12d.Direct Potable Water to Storage (Figure 2-47).NOTEDuring first start-up with new RO elements, continue to direct the product water to waste forat least 30 minutes to flush out preservative.(1)The TDS meter is designed for use with water temperatures of 50F (10C) and above. If water being tested is below50F, then reading obtained must be adjusted. Use water temperature along base of graph (Table 2-22.1) to obtain themultiplier on the left side of the graph. Multiply reading by the multiplier obtained to correct the reading for temperature.(Example: 35F = 1.08 multiplier, 41F = 1.05 multiplier.)Table 2-22.1. TDS Temperature Graph(2)Use the portable TDS meter to measure the TDS from the concentrated sample valve (Item 20, Figure 2-6).(3)Table 2-23 presents the maximum product water TDS as a percentage of the water source TDS. Use the portable TDSmeter to measure the water source TDS.(4)Calculate the maximum product water TDS as shown in the examples.CAUTIONBefore placing the product hose end into a tank, be sure mud and dirt have been washedoff.NOTES· If after 20 minutes the product water TDS has not dropped below the calculate maximum,refer to RO elements troubleshooting, Table 3-1. The product water may only be directedto storage if released by the medical team.· When product water is acceptable for storage, fill the 5 gallon plastic jug for use in netstart-up. Set the 5 gallon jug filled with product water in corner of the van.· Water will fill all potable water storage tanks simultaneously once the outlet level of thefirst tank is reached(5)Compare the actual measured product water TDS with the maximum TDS. If the measured sample is less, and the wateris released by the medical team, proceed and direct the product water into the storage tanks by inserting the productwater hose in the middle tank and strapping it down.2-84 Change 12
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