
Therefore, not only are mixing valves expensive to install, operate and maintain they also are a big part of the problem that ProEconomy is trying to solve. In effect they are creating the optimum environment for bacteria including Legionella to breed. It is no wonder then that mixing valves can become, if not maintained properly, breeding grounds for Legionella bacteria.
Even the UK Health Protection Agency voiced concerns about the effects of mixing valves and stated that is virtually impossible to get successful Legionella control downstream of them.
With the Orca system hot water temperatures can be safely reduced and mixing valves can be removed, therefore, the Orca system offers a safer, cheaper and easier to maintain solution.
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