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To leave or not to leave

Posted by Harold Kestenholz - Hydronic Network on October 29th, 2000 12:33 AM
In reply to water heater (more than one) by Dave C on October 28th, 2000 09:50 PM [Go to top of thread]

The water in the tank has the potential of devaloping Legionanaire's disease if left at a low temperature. If you drain the water periodically and refill it, the fresh water will bring with it chlorine to help kill organisms. The inside of water heaters are usually glass-lined to prevent rust, so draining the water heater and removing the relief valve and opening the drain valve to let air circulate in the tank can prevent disease.

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