34024 136 25 34 min 36032 137 25 34 min 36040 133 25 34 min 34050 135 25 34 min 36060 137 25 34 min 36070 136 25 34 min 360100 138 25 34 min 460130 138 25 34 min 480______________________________________ beyond 480 micro mhos washout was incomplete at a transport speed of 25 34 per minute and at a temperature of 136 u00b0 f by adding 14 gallons of clean water to a tank volume of 91 gallons the concentration of polymer was reduced to 440 micro mhos the readings set forth above were taken over 2 75 hours thus it can be seen that 5 1 gallons per hour of makeup liquid will prevent the solution concentration from disrupting machine operation it can also be seen from the above data that the tank temperature increased 14 u00b0 during the 2 75 hour test period it has been calculated that with a 6 kilowatt energy input from 6 transducers 46 with tap water of 70 u00b0 and a desired operating temperature of 130 u00b0 that it will be necessary to introduce 45 5 gallons of tap water per hour in one 4 hour test with the tank temperature initally at 138 u00b0 60 gallons of water per hour were introduced the tank temperature being 142 u00b0 at the conclusion of the test in another test the distance of the plate from the acoustical radiating surface of the transducer was varied the test results are as follows ______________________________________speed distance results______________________________________25 ipm 13.