Pool care guides

The complete green-pool rescue: why it turned, the shock math that actually kills algae, how long it takes, and the filter work everyone skips.

A diagnostic guide to milky water: filtration, chemistry, particles or early algae — how to tell which one you have and the fix for each.

What shocking actually does, the breakpoint math, liquid vs cal-hypo vs dichlor for the job, and the timing rule everyone gets backwards.

The right order of operations for spring opening — cover, equipment, water level, the first test, and the week-one chemistry plan that avoids a green start.

Winterizing that actually protects the pool: final chemistry, the freeze-protection steps that prevent real damage, and which closing products are optional.

The honest salt-conversion math: equipment and install costs, cell lifespan as the hidden line item, what maintenance actually changes, and who shouldn't convert.

The stabilizer trap: how trichlor pucks quietly push CYA past 100, why chlorine stops working, the dilution math, and how to keep it from rebounding.

A realistic weekly schedule that keeps water clear on autopilot: the two tests, three physical chores and one look at the filter gauge that prevent every expensive problem.

Why your test kit shows two chlorine numbers, what combined chlorine (chloramines) really is, the smell myth, and when the gap between readings demands a shock.

The starter mental model: five chemistry numbers, three habits, the gear worth buying on day one, and the beginner mistakes this site's rescue guides exist to fix.

The chlorine-resistant algae that looks like pollen: how to identify it, why normal shocks fail, the elevated-kill protocol, and the equipment-sanitizing step everyone skips.

The armored, rooted algae that laughs at shock: why it's different, the wire-brush-and-tablet protocol that actually works, realistic timelines, and when a plaster pool needs professional help.

The pool-store diagnosis decoded: the two real conditions behind 'chlorine lock' — CYA overload and chlorine demand — how to tell them apart with one overnight test, and the fix for each.

Why pools foam — cheap algaecide, cosmetic and detergent load, low calcium, or air leaks — how to identify your cause from the foam itself, and the fixes from free to cheap.

Identify before you treat: the vitamin-C and chlorine-tablet spot tests that classify any stain as metal or organic in 60 seconds, the color decoder, and the right removal path for each.

Shock dosing by the numbers: routine, algae-kill and chloramine targets translated into actual ounces and gallons of each product for every pool size — with the CYA multiplier explained.