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Frequently Asked Questions
- I've had a leak into the closed steam side of the system, animal fat and vegetable oil has entered the feedwater tank, boiler, and steam lines. I've flushed the boiler several times but need something to clean the remaining residue. What do you recommend?
- To remove the fats and oils from the boiler, you will most likely need an alkaline boil-out like our Chemworld Q-Alk. Please note that you may need a high-temperature boiler water defoamer; depending on how the animal fat/vegetable oil reacts.
- Are there any instructions for using the New Boiler Boil Out Chemical. It says to use 1 gallon for every 100 gallons of water. Should I have the boiler heating at all and how long should I let it cycle before draining?
- The Boiler should be fired on low fire to obtain mixing and circulation. When steam is flowing freely from the vent(s), these are then closed and the pressure is raised to 50% of the operating pressure (except for boilers operated at 15 psi or lower where the pressure may be raised to operating pressure). The pressure should then be maintained for 12-36 hours and during this period, the boiler should be blown down from the bottom by 1/2 the gauge glass every 2 hours, refilling to the top of the glass after each blowdown.
After the boil out procedure is completed, the boiler should be carefully cooled. When sufficiently cool, the vent(s) may be opened and the unit drained and thoroughly flushed with a high-pressure hose. After flushing, it should then be carefully inspected to insure the cleaning has been complete.
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