Table of Contents
Advertisement
Page 18
4.5 Optimum Pool Water Conditions
In accordance with National Spa and Pool Institute (NSPI) standards, we recommend the following water
balance conditions be maintained on an on-going basis to protect the pool fi nish and equipment and
ensure the pleasing appearance of the water. The AquaPure is warranted to operate properly only if these
conditions are met.
Free Chlorine
Combined Chlorine (Chloramines)
pH
Chlorine Stabilizer (Cyanuric Acid)
Total Alkalinity
Calcium Hardness
Metals (Copper, Iron, Manganese)
Nitrates
4.6 Chlorine Testing
It is recommended that chlorine test samples be taken from two places. Compare the samples. A higher
level should be found at the pool return line. The higher level at the pool return line indicates the AquaPure
is producing chlorine.
1.
At the pool return line.
2.
18 inches (457 mm) below the surface and well away from the pool return line.
4.7 Salt (NaCl sodium chloride)
4.7.1
What Type of Salt to Use?
• The purer the salt the better the life and performance of the electrolytic cell. Use a salt that is at least
99.8% pure NaCl. The preferred salt is an evaporated, granulated, food quality, non-iodized salt.
Consult your salt supplier.
• Avoid using salt with anti-caking agents (sodium ferrocyanide, also known as YPS or yellow prussiate
of soda) that could cause some discoloration of fi ttings and surface fi nishes in pool.
• Water conditioning salt pellets are compressed forms of evaporated salt and may be used but will take
longer to dissolve.
• Do Not use calcium chloride as a source of salt. (Use sodium chloride only).
• Do Not use Rock salt (insoluble impurities mixed with the rock salt can shorten the life of the unit).
4.7.2
How Much Salt to Use?
Use Table 1 on page 20 to determine how much salt will be needed. Most pools contain some salt
depending on the water source and chemicals used for sanitizing. If the AquaPure has not been wired
and turned on yet, a hand held meter calibrated for NaCl (salt) can be used to determine the existing salt
concentration of the water. If the AquaPure is wired in (connected), use it to determine the salinity.
1.0 - 3.0 PPM. Above 3.0 PPM may cause corrosion of
pool metals.
None (Super Chlorinate to remove all Chloramines).
7.2 - 7.8 (USE MURIATIC ACID to lower pH and Soda Ash
to raise pH).
50 - 75 PPM
80 - 120 PPM
150 - 400 PPM
None
None
Advertisement
Table of Contents
