What is the minimum flow rate for the Pentair Mastertemp 400?
Pentair UltraTemp 140 Heat/Cool Pump 140K BTU 230V Black, 460959
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Open Apr 07, 2026 - 12:40 PM
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Answer
Apr 07, 2026 - 12:40 PM
The minimum flow rate for the Pentair Mastertemp 400 pool heater is 40 gallons per minute (GPM). This ensures proper operation and helps prevent damage to the unit. Always consult the user manual for specific installation requirements.
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