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WATER SUPPLIES
This warm water system must be installed in accordance with this advice to be covered by the Rheem
warranty.
This warm water system is manufactured to suit the water conditions of most public reticulated water supplies.
However, there are some known water chemistries which can have detrimental effects on the warm water
system and its operation and / or life expectancy. If you are unsure of your water chemistry, you may be able to
obtain information from your local water supply authority. This warm water system should only be connected to a
water supply which complies with these guidelines for the Rheem warranty to apply.
Note: Some water analysis reports may state the conductivity of the water rather than the level of total dissolved
solids. Conductivity, measured in microsiemens per centimetre (µS / cm), is directly proportional to the TDS
content of the water. TDS, in mg / L, is approximately 70% of the conductivity in µS / cm.
CHLORIDE AND PH
In a high chloride water supply, the water can corrode stainless steel parts and cause them to fail.
Where the chloride level exceeds 250 mg/L the Rheem warranty does not apply to the stainless steel UV
chamber in the ultra violet disinfection system
pH is a measure of whether the water is alkaline or acid. In an acidic water supply, the water can attack stainless
steel parts and cause them to fail.
Where the pH is less than 6.0 the Rheem warranty does not apply to the stainless steel UV chamber in the ultra
violet disinfection system.
Water with a pH less than 6.0 may be treated to raise the pH. The water supply from a rainwater tank in a
metropolitan area is likely to be corrosive due to the dissolution of atmospheric contaminants. This may result in
pH of less than 6.0. It is recommended an analysis on the water from a rainwater tank be conducted prior to
connecting this type of water supply to a system employing a stainless steel ultra violet disinfection system.
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