USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
3
Salt Level
Use the chart on page 4 to determine how much salt in pounds (or Kgs) needs to be added to reach
the recommended levels. Use the equations below (measurements are in feet/gallons and meters/
liters) if pool size is unknown.
The ideal salt level is between 2700-3400 ppm (parts per million) with 3200 ppm being optimal.
If the level is low, determine the number of gallons in the pool and add salt according to the chart
on page 4. A low salt level will reduce the efficiency of the Aqua Trol
®
and result in low chlorine
production. A high salt level can cause the Aqua Trol to shutdown and may begin to give a salty
taste to your pool (generally, the salt will begin to be tasted at a level of about 3500-4000 ppm). The
salt in your pool is constantly recycled and the loss of salt throughout the swimming season should
be small. This loss is due primarily to the addition of water because of splashing, backwashing or
draining (because of rain). Salt is not lost due to evaporation.
Type of Salt to Use
It is important to use only sodium chloride (NaCl) that is 99% pure. This is common food quality or
water softener salt available in 40-80 lb. bags at your local Hayward dealer. It is also acceptable
to use water conditioning salt pellets, however, it will take longer for them to dissolve. Do not use
rock salt, salt with more than 1% yellow prussiate of soda, salt with more than 1% of anti-caking
additives, or iodized salt.
How to Add or Remove Salt
Turn the filter pump on and add the salt directly into the pool. Brush the salt to speed up the dis-
solving process--to not allow the salt to sit in a pile on the bottom of the pool. Run the filter pump
for 24 hours with the suction coming from the main drain (use the pool vacuum if there is not main
drain) to allow the salt to evenly disperse throughout the pool. The salt display may take 24 hours
to respond to the change in salt concentration.
The only way to lower the salt concentration is to partially drain the pool and refill with fresh water.
