SpaGuard® Spa Sentry – 32 fl oz pH Stabilizer & Water Softener (1-Step)
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Product Overview
SpaGuard® Spa Sentry is a one-step buffering and softening treatment that stabilizes pH and removes dissolved calcium from spa water in a single dose, with effects lasting up to two months. It's designed for spa owners who want fewer weekly maintenance steps without giving up water clarity or protection.
This 32 fl oz product is compatible with chlorine, bromine, ozone, and biguanide sanitizer systems. It is not recommended for spas with plaster or tile surfaces, or for spas already running a Soft Soak® system, since combining softening treatments can overcorrect water chemistry — check your spa's surface type and existing water-care routine before adding it.
Because one application covers an extended period, Spa Sentry works well alongside routine sanitizer dosing rather than as a replacement for it. Keeping pH stable over a longer window reduces the frequency of manual balancing and helps protect your spa's plumbing and heating components from the swings that come with unbuffered water.
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