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TOTAL ALKALINITY
TEST MONTHLY AND MAINTAIN BETWEEN 80-120 PPM
Using a normal Total Alkalinity test kit, determine the reading and adjust.
IF THE TOTAL ALKALINITY IS UNDER 80 PPM
Raise the Total Alkalinity to about 100 ppm by adding sodium bicarbonate (baking soda). Consult chart on amount needed.
IF THE TOTAL ALKALINITY IS OVER 120 PPM
Lower the Total Alkalinity to about 100 ppm by adding muriatic acid or dry acid. Consult chart on amount needed.
TIPS ON BALANCING THE TOTAL ALKALlNITY
Never add acid or dry acid to the spa when the pH is 7.2 or below, regardless of what the Total Alkalinity reading is. Acid will
lower both Total Alkalinity and pH at the same time.
With a high Total Alkalinity, the pH will bounce up the next day. Continue the addition of acid until the Total Alkalinity drops to
the 80-120 ppm range. It may take several hours of repeating this process before the Total Alkalinity reaches the proper
range.
NEVER ADD ACID DIRECTLY INTO THE SPA. IT IS BEST TO USE DRY ACID. IF ONLY MURIATIC ACID IS AVAILABLE,
DILUTE IT FIRST.
CALCIUM HARDNESS
TEST YEARLY AND MAINTAIN BETWEEN 150-350 PPM
We recommend that the Calcium hardness reading should be between 150 and 350 ppm. If the reading is below 150 ppm, the
chances are the spa was filled with softened water. The water may also be cloudy often.
IF THE CALCIUM HARDNESS IS UNDER 150 PPM
If the calcium hardness is under 150, add calcium chloride, available in any spa/pool store. Follow instructions on container if
needed.
IF THE CALCIUM HARDNESS IS OVER 350 PPM
If the calcium hardness is over 350 ppm, the water should be partially drained and refilled with fresh water, unless
you are adding the
"ScaleBlaster"
to the system.
CYANURIC ACID
Cyanuric acid is not required with the
Clearwater Spa Purifier
. If the cyanuric acid level is over 150 ppm, the spa should be
partially drained and refilled with fresh water.
TOTAL DISSOLVED SOLIDS
The
Clearwater Spa Purifier
requires some conductivity in the water for ionization to take place. For the system to perform
on maximum capabilities, the TDS needs to be at least 500 PPM. Most spas already have this level because the TDS always
goes up every time something is added to the spa. Only when new fresh water is added to the spa is when the TDS may be
below 300 ppm.
If a TDS meter is not available, all spa/pool stores can do this test for free.
You can very easily raise the TDS level - IF YOU NEED TO. Remember, the TDS level always goes up whenever anything is
added to the spa, and a reading at least 500 ppm may be obtained over a short period of time. The TDS level never goes
down, so if you have to raise the TDS, it would be only for this one time or whenever you change the water in the spa. You
may not have to raise the TDS because of the size of your spa. The unit is designed to handle 2,000 gallons of water easily.
You would really only need to raise the TDS level if the spa was a large one and the purifier was unable to put the proper
amount of copper-ions in the water.
To raise the TDS, you would need to add 1 ounce of regular salt to raise the TDS by 10 ppm per 500 gallons. Do not worry
about turning the spa into salt water - the TDS of that is 33,000 ppm! Only add salt if necessary when you cannot obtain the
desired copper-ion level. Low TDS levels is actually desirable.
The
Clearwater Spa Purifier
will work on any TDS level, however, a reading over 2,000 ppm should be lowered because
more of an oxidizer will be required. To lower the TDS, partially drain the water and add fresh water. Chances are that if your
TDS was over 2,000 ppm your water was cloudy often, or required a lot of chlorine or bromine.
