Operating Instructions
Page 14
III. OPERATING INSTRUCTIONS
START-UP AND REFILL PROCEDURES
Your Hot Spot
®
Spa has been thoroughly tested during the manufacturing process to ensure reliability and long-term
customer satisfaction. A small amount of water may have remained in the plumbing after testing and, as a result, may have
spotted the spa shell or the spa siding prior to delivery. Before filling the spa, wipe the spa shell clean with a soft rag.
The following instructions must be read and followed exactly to ensure a successful start-up or refill.
CAUTIONS
• Do not fill the spa with hot water, as tripping of the high-limit thermostat may result.
• Do not connect power to an empty spa. Power to the spa automatically activates critical components
within the spa, such as Controls, the Heater and other systems. If power is supplied to these components
prior to the spa being filled, the components will be damaged, and this may result in a non-warranty
component failure.
• Do not use your spa after filling until all of the steps listed below are completed.
• Do not add chlorine if treating your spa with polyhexamethylene biguanide (Biguanide, PHMB, eg.
BaquaSpa™) sanitizer.
1. Close the drain and fill the spa with water through the filter compartment. The water level of your Hot Spot
®
Spa should
be maintained at six (6) inches below the bar top (top of the spa).
RECOMMENDED: Use the FreshStart™
10,000
Pre-filter to remove unwanted contaminants from the tap water.
IMPORTANT: Watkins Manufacturing Corporation does not recommend that the spa be filled with “softened” water,
as this may damage the spa’s equipment.
2. AFTER the spa has been filled with water and the equipment compartment door is secured, power must be applied to
the spa.
• Cord connected 115 Volt 15 amp Models – Connect the plug to the waterproof receptacle and push the Reset
button on the GFCI.
• Converted 115 Volt 30 amp Models – Open the door of the electrical subpanel and reset the GFCI breaker. Close
and secure the subpanel door.
3. The jet pump, heating system and all internal plumbing will achieve a partial prime as the spa is filled. To check the
operation of the jet system and remove any remaining air from the heating system, push the JETS button twice to
make the jet pump run on high speed for one minute. Once the jet system is fully operational (as indicated by strong,
non-surging jets), priming of the spa is complete.
IMPORTANT: The air control which is located on the top of the spa shell and labeled “Comfort Control
®
” should be set
to the MAX position when checking jet operation. Always turn the air control to the MIN position anytime the spa is not
being used. This will help to make the spa operate more quietly and heat more efficiently when the cover is in place.
4. Adjust Total Alkalinity (TA) to 125 ppm, Calcium Hardness (CH) to 150 ppm, then spa water pH to between 7.2 and 7.4.
These procedures are listed in the “Water Quality and Maintenance” section.
IMPORTANT: Add spa water chemicals directly into the filter compartment with the jet pump on high speed for at
least ten minutes.
OPERATION NOTE: Adjusting the Total Alkalinity as the first step is important, as out-of balance TA will affect your
ability to adjust the pH correctly and will prevent the sanitizer from operating effectively.
5. Superchlorinate the spa water by adding 1-1/2 teaspoons of chlorine (sodium dichlor) per 250 gallons of spa water.
Run the jet pump (push the JETS button twice to make the pump run on high speed) for 10 minutes.
6. Set the temperature control to the desired temperature (between 100°F and 104°F), then place the vinyl cover on the
spa and allow the water temperature to stabilize (approximately 24 hours). Make sure you secure the cover in place
using the cover locks. Periodically check the spa water temperature. When the water temperature climbs above 90°F,
proceed to the next step.
7. Turn on the jets (push the JETS button twice to make the pump run on high speed) for 10 minutes to circulate the spa
water. After the cycle is complete, test the spa water for Free Available Chlorine (FAC) residual. If the residual is
between 3 and 5 ppm on the test strips (found in the test kit) go on to the next step. If the residual is less than 3 ppm,
superchlorinate the spa water by adding 1-1/2 teaspoons of chlorine (sodium dichlor) per 250 gallons of spa water.
Run the jet pump (push the JETS button twice to make the pump run on high speed) for 10 minutes.
8. Recheck the Total Alkalinity (TA) at 125 ppm, Calcium Hardness (CH) at 150 ppm, then spa water pH at between 7.2
and 7.4.
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