FILLING AND WATER TREATMENT : STEP 2 - CLEANING:
imperative that only the best available fill water be used to initially fill your new GARN WHS unit. To help determine if your water supply is acceptable fill water, a sample must be sent to a lab for initial testing. A sample bottle, mailer and instructions are included for you to do this. Mark the sample as FILL WATER SAMPLE . The test is free to the original GARN WHS owner. Johnson Products will test your sample and determine whether this water can be successfully treated, or whether you might benefit from a different source of water.
Analysis of any water sample will take up to 2 weeks after the water sample is received by the lab. Plan ahead and schedule accordingly.
Municipal water: if you are considering municipal water as possible fill water, it is important to contact the responsible local authority to determine if polyphosphates or similar chemicals are used in the treatment of the municipal water. Polyphosphate is one of a number of chemicals that may be used to prevent: iron staining of kitchen and bathroom fixtures; or assist in the settling of unwanted solids at the treatment facility. When such chemicals are present in water and are heated to a temperature of about 140F they can form significant sludge on the bottom of your GARN WHS unit. This sludge prevents the water treatment from protecting the steel tank, leading to under deposit corrosion and possible early failure. Please note that the Fill Water Sample is from a municipal supply when submitting the sample. DO NOT PROCEED with chemical cleaning, filling or treating your new GARN WHS unit until you have received and reviewed the results of the fill water analysis. If you proceed and the test results show that the fill water was not acceptable, you will have wasted the chemicals provide and will have to purchase new chemicals at additional cost. In addition , if you proceed without a fill water test or by using unacceptable fill water all GARN WHS equipment warrantees will be void.
If you provided a fill water sample and the results indicated that the fill water is acceptable, proceed to STEP 2 Cleaning.
STEP 2 - CLEANING: It is very important to start with clean interior surfaces. Remove all internal accumulated debris with a shop vac. Debris results from manufacturing, shipping and onsite placement and construction. To remove the manufacturing oils and prep the internal tank surfaces, a chemical Cleaner (775P) is used. This step cleans and passivates the steel and prepares it for the final water treatment. It is a critical step and should NOT be skipped.
Before proceeding, ensure there are no leaks at the unit or any piping system directly connected to the unit and that all pipe plugs are installed.
CAREFULLY premix the Cleaner in a clean 5 gallon bucket with warm water. Add 1/3 of a pail of PreClean to about 3 gallons of clean water. Do NOT use a dirty bucket or a bucket where the previous contents are unknown as dangerous reactions may occur. Repeat the process of premixing, and adding until the entire PreClean chemical is used. Fill your unit to a water depth of about 16” and add all the PreClean.
GARN WHS 1000 and WHS 2000 Manual © HY-C Company LLC - September 2024
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