An automatic chlorinator provides
addition of the chemical at a consistent rate and make control much easier
than when using other approaches. Pentair provides a conceptually
simple and very effective device and its maintenance is described at the
bottom of this page.
Once each week, the cap at the
top of the cylinder should be unscrewed (after shutting down circulation
pumps) and filled with 3" chlorine tablets. Use caution to avoid
loosing the "O Ring" gasket located in the screw cap. The gasket
should be inspected during each charging and replaced if it becomes hard
or distorted to avoid development of water leaks in the areas of the
screwed connection. The numbered dial should be adjusted to higher
numbers to increase addition and lower numbers to reduce chlorine level.
A good starting point for summer operation is a setting of 21/2.