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Ships within 48 hours · Estimated delivery Aug 1 - Aug 6
the Maelstrom runs at its "sweet spot"—high flow on high speed for therapy jets
Lasts 6 months with easy install date ring for tracking replacements
ensuring both efficiency and protection for all spa surfaces
Total Hardness
or lasts as long
St. Cyr Alkalinity Increase 25lbs Skimmer Plugs & Protectors the Maelstrom runs at itsSt. Cyr Alkalinity Increase 25lbs (No Returns On Chemicals) Local Pick Up Only Middleton MA Location St. Cyr Alkalinity Increase 25lbs is a granular product used to raise total alkalinity in spa or hot tub water, stabilizing pH levels, preventing corrosion, and ensuring comfortable, balanced water for soaking. Its active ingredient is typically sodium bicarbonate, which provides precise control over alkalinity without introducing unwanted additives.
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