Soft water in a hot tub is more damaging than most owners realize. Low calcium hardness eats away at acrylic shells, corrodes heater elements, and causes persistent foam. This guide explains what target range to hit, how to raise calcium safely, and how to spot the damage before it gets expensive.
Most hot tubs need a full drain and refill every 3 to 4 months, but heavy use or stubborn chemistry problems can push that closer to every 6 to 8 weeks. This guide walks you through exactly how to time your water changes and what signs mean you’re overdue.
Getting your hot tub chemistry right from the first fill sets you up for months of clear, comfortable water. Skip the right steps and you’ll be fighting foam, cloudiness, or scale before you even break a sweat. Here’s a specific, practical guide to startup chemistry in the right order.
Hot tub foam is almost always caused by contaminants in the water – soaps, body products, or low calcium hardness. This guide explains the difference between a quick fix and a real fix, so you stop treating the symptom and start solving the problem.