We use T&D also (for a hot tub), call them back, tell them you want service TODAY, and followup if necessary to clean the water. There is no additional cost for additional service. I have had to do this 3 or 4 times when our hot tub water got cloudy. They should send out a supervisor to determine exactly what is wrong and make corrections. One of the items that may explain the difference is if the other pools were not the same chemistry as yours, salt versus chlorine, we actually use bromine in the hot tub now.
Hope this helps.
NOTE: I have always had very good luck when I needed an additional service call.
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Pennsylvania, for 60+ years, most recently, Allentown, now TV. 
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