Waterfalls; Water Clarity - Cal Spas F-168 Owner's Manual

Air venturis are the 1" knobs located around the top of your spa. Each one will
let you add a mixture of air with the jet pressure. This is accomplished by
rotating the air venturi knob to the left (counter-clockwise) to increase the
amount of airflow through the jets. To decrease the amount of airflow through
the jets, rotate the handle to the right (clockwise).

3.17 Waterfalls

Some spa series include optional waterfalls. When the booster pump is on, rotate the dial on top (for the
cascade waterfall) or turn the knob (for the hydro streamer -- see below).
Your spa may include two to eight streamer waterfalls. When the booster pump is on, turn the 1" diverter
knob to adjust the rate of flow to the waterfall jets.
The waterfall jet faces are not adjustable. Do not turn the jet faces because you may accidentally remove
them. Always shut off water to the hydro streamer jets before you place the cover on the spa. Water from the
hydro streamer jets sprays in an arc that is higher than the top surface of the spa. When water from the hydro
streamer sprays the bottom of the cover, it will collect and run to the edge of the spa and drip over the top.

4. Water Clarity

This section is intended for new spa owners with no experience with water chemistry. Everyone's knowledge
with maintaining water quality is different, but there are some general concepts you need to know.
Water maintenance is not difficult, however, it does require regular attention. The most important thing to
understand about taking care of your spa water is that preventative action is much easier than correcting
water quality issues.
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