E-298 Pool Nation Podcast Hot Tub & Spa Chemistry Masterclass: Why Pool Pros Get It Wrong (Hot Water
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Key Takeaways
Always maintain a measurable sanitizer residual in spa water, preferably on the higher end of the recommended range (2-5 ppm) due to higher bather loads and warm temperatures.
Balance water chemistry (alkalinity, pH, calcium hardness) before adding any sanitizers to prevent damage to spa components and ensure sanitizer effectiveness.
Utilize bromine in hot tubs for its superior stability and effectiveness in warmer temperatures and wider pH ranges compared to chlorine.
Proactively use supplemental treatments like enzymes, clarifiers, and metal/scale preventatives to reduce chemical consumption, improve water clarity, and extend the life of spa components.
Educate homeowners on the 'human juice' factor and the importance of shocking after heavy use, as well as the need for regular draining, purging, and chemical cleaning of filters (every 90-120 days).
Understand that cold plunges require different product dissolution rates, with liquid sanitizers often preferred due to the slower dissolution in freezing water.
Recognize that foam in a hot tub indicates a problem, not a natural occurrence; investigate and address the root cause, which could range from chemical imbalance to biofilm.
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