Marquis Crown Summit Owner's Manual page 48

SPA CARE
Calcium Hardness
Do not use soft water in your spa. It is critical to have calcium in your water. The ideal range of
calcium is between 150 – 250 ppm. The calcium hardness is normally adjusted when filling or
refilling after draining the spa. High calcium levels can cause scale buildup on spa surfaces and
equipment. Your spa can be protected against high calcium by using Metal & Stain Remover per
the directions on the container. Low calcium levels can cause spa water to become highly corrosive
and damaging to the equipment components and plumbing. To raise calcium levels, use Calcium
Hardness Increase.
BALANCE
When initially filling or refilling your spa, follow these steps to achieve proper water balance.
IMPORTANT! Always follow instructions on the chemical container when adding chemicals.
1. Test the spa water using a test strip or test kit. Determine the pH and alkalinity of the water.
2. If adjustments are needed for the pH and/or alkalinity, always balance the alkalinity before
balancing the pH. The product(s) you should use to adjust pH and/ or alkalinity are pH Increaser,
Alkalinity Increaser or pH & Alkalinity Decreaser. Make any additions per the directions on the
bottle and then test and repeat if necessary until all readings are in the desired range.
3. Increase the calcium hardness if necessary.
SHOCK
Initial Treatment
Shock the spa using granular Chlorine Sanitizer or non-chlorine Spa Shock. Add directly to the
spa per the instructions on the container. For the initial treatment, Chlorine Sanitizer is preferred
as it will also establish a residual of sanitizer. You may shock weekly using non-chlorine shock
for low chlorine usage.
Maintenance Treatment
Once bacteria and other wastes are neutralized by the sanitizer, they stay in the water unless
oxidized or shocked. Often called chloramines or bromamines, they create dull, cloudy water
and can cause odor and eye or skin irritation. Shock treatment rids your spa of these wastes for
clear, sparkling water. Shocking with non-chlorine Spa Shock or granular Chlorine Sanitizer is
recommended once a week or whenever the water appears dull or cloudy or has a strong odor.
Non-chlorine Spa Shock allows use of the spa 15 minutes after shock treatment.
NOTE: A strong bromine or chlorine odor typically indicates the spa needs to be shocked – not that
there is too much bromine or chlorine in the water. A properly balanced spa, shocked, will not have an
odor.
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