White Powder on HVAC Coils Cause HVAC Drain Line Clog HVAC Drip PanDrain Line ClogsDrain Pan ProtectionHVAC Coils White Powder on HVAC Coils Cause HVAC Drain Line ClogManage white powder (Aluminum Hydroxide) HVAC drain clogs with DRAIN IV In humid climates, new…wpusername2554June 18, 2025
