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Where local requirements limit discharge temperature of fluids into drainage system, use tempering device that runs water only when equipment discharges hot water
Provide thermal recovery heat exchanger that cools drained discharge water below code-required maximum discharge temperatures while simultaneously preheating inlet makeup water
If fluid is steam condensate, return it to boiler
Venturi-type flow-through vacuum generators or aspirators
Use no device that generates vacuum by means of water flow through device into drain
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