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Low calcium hardness is one of the most overlooked hot tub chemistry problems. Soft water aggressively corrodes surfaces and equipment, and fixing it is simpler than most owners expect. This guide covers the target range, the risks of ignoring it, and exactly how to bring calcium hardness up.
That slimy gunk coming out of your hot tub jets is biofilm – a bacterial colony living inside your plumbing. It survives regular sanitizer doses and won’t go away on its own. This guide explains what biofilm is, how to flush it out completely, and how to keep it from building back up.
Most hot tubs need a full drain and refill every 3 to 4 months, but heavy use, foam, or stubborn cloudiness can push that timeline earlier. This post explains exactly how to tell when your water is done, how to stretch it a little longer, and what to do on refill day to start fresh.
Hot tub jets can fail in several ways – weak pressure, no spin, air lock, or complete shutdown. Most problems come down to a few root causes: clogged filters, air locks, closed diverter valves, or a struggling pump. This guide walks you through diagnosing each one so you know what you’re dealing with before calling a tech.
Cloudy hot tub water is one of the most common problems hot tub owners run into, and it almost always traces back to one of three things: chemistry, filtration, or bather load. This guide walks you through how to diagnose the cause and clear it up fast, without guessing.
Setting up a new hot tub correctly from the first fill prevents months of water problems. This guide walks through every chemical step in the right order, with specific targets and common mistakes to avoid before you ever step in.
Foam in your hot tub is almost always caused by contaminants like body oils, lotions, and detergent residue reacting with the water. You can knock it down fast with an anti-foam product, but fixing the root cause is what keeps it from coming back. Here’s the full breakdown.
The first week with a new hot tub sets the tone for everything that follows. This practical day-by-day guide covers what to test, what to adjust, and how to build habits that keep your water clean without making it a part-time job.
A hot tub party can wreck your water chemistry in one evening if you go in unprepared. The fix is a simple before-during-after routine: pre-treat your water, set chemical levels higher than normal, and shock immediately after everyone clears out. Here’s exactly how to do it.
Spring startup is one of the easiest things to get wrong — and one of the most satisfying to get right. This guide walks you through the exact steps to flush, drain, refill, and rebalance your hot tub after winter so you’re soaking safely within a day or two.