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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.
COPPER LEVEL
Before installing the
Clearwater Spa Purifier
, you should test the copper level. There may be a level of copper sulfate in the
water from leached copper piping, or from a copper based algaecide. If the reading is over .10 ppm, corrections may have to
be made. You want to have a proper balance of copper and silver ions in the water, so you need to find the source of the
copper already in the water. Remember, this is not the same copper that is produced by the purifier. If it is from copper pipe,
the copper was leached from a low pH of 7.0 or less. Make sure the pH is maintained over 7.0 to prevent further copper
leaching from the pipes. You will only find copper piping near a heater or on very old houses. If the source is from a copper-
based algaecide, you can try shocking the spa with a lot of liquid chlorine to "burn" it out, or simply start the ionizer up very low
and do not allow the level to go over .40 ppm. Eventually the copper algaecide will dissipate.
SEQUESTERING AGENTS
Sometimes spa owners will add a flocking or sequestering agent to the water to remove stains or scaling in a spa or remove
undesired minerals that are in the source water.
Clearwater Enviro Tech
sells a "Sequestering Agent" test kit that can test for
stain, scale and mineral removers. Sometimes, some of these products can remove the copper-ions that you are about to
introduce to the water.
For best results, you should test the Sequestering Agent Level before installing the Unit.
Clearwater Enviro Tech
dealers are
recommended to get a test kit to test the Sequestering Agent Level in the water. Some products that will cause a problem
include
Sequasol
,
Cop-Out
,
Metal Magnet
,
Aluminum Sulfate
or
A
LUM
. Products that do not cause problems include
Pool
Stain Treat
by
United Chemical
, and
Jack's Magic Products
. All polymer based products like
Super Blue
and
Sea-Klear
do
not cause problems either.
If you do not have a test kit for Sequestering Agents, you should only worry about this if you are UNABLE TO GET THE
REQUIRED COPPER-ION LEVEL in the water. You can send a water sample to
Clearwater Enviro Tech
for a free analysis.
Please call the offices first. If the spa does have one of the products above that removes the copper-ions, simply shock the
spa with a large amount of liquid chlorine to "burn" it out. Make sure the customer no longer uses this product. Without
"burning" these Sequestering Agents out of the water, they may last several months in the water after the customer added it.
Sometimes the customer forgets they added it in the first place.
