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       Tank sediment;

        The cause of tank sediment is hard water and high tank temperatures.  Only drain-back systems have high temperature protection capabilities.  Many of our local service calls are caused by glycol systems which during the summer months have very high tank temperatures.  High temperatures cause system component failures and heavy sediment buildup.  Techsun's unique system design and periodic tank flushing (the draining of 20 to 30 gallons from the water tanks every 6 months) eliminates sediment buildup.  Open loop systems (live tap water in the collector) obviously have sediment, corrosion, overheating and freezing issues.

        Early tank corrosion is usually created by ;

1. Di-electric unions not being used with the threaded tank penetrations.
2. Sediment builds up from the bottom of the tank and encases the bottom element.  As a result the element will prematurely corrode and a leak will begin through the element tank port.
3. During the installation or thereafter water penetrates non-protected tank components (skin or inner steel tank through the insulation).