With regards to water quality and treatment, what filtration and dosing measures have to be taken for the water within the closed water system?

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With regards to water quality and treatment, what filtration and dosing measures have to be taken for the water within the closed water system?

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Water treatment is not essential if plastic pipe-work is used. However the Colt-Caloris watersystem must not be contaminated by impure water. Basic sensible precautions are required to ensure that the cleanliness of the water system is maintained in order to ensure satisfactory long-term operation. See the unit specification. These include: – Ensure that the watersystem is thoroughly flushed through before any units are re-connected to the system. If possible, incorporate large bore drain valves at the bottom of the risers so that a high rate of flow can be maintained. Back flush unit connections or provide flushing between flow and return. – Filters and dirt pockets should be provided and cleaned out frequently during the first few months of operation. – No matter how clean the flushing water when it exits from the drain valves, further corrosion may occur because fresh dissolved oxygen is introduced with each flushing. It is therefore essential that the pipe-work be passivated before

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