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Pool Care Guide

Green Pool Recovery on the Texas Gulf Coast

What turns a pool green in this climate, what professional algae recovery really involves, and what it should cost — explained by the techs who clean them every week.

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The short answer: a green pool is almost always an algae bloom caused by lost sanitizer, stalled circulation, or both. Professional recovery starts at $349 with Hood's Green-to-Clean service and typically returns a pool to swim-ready in 3–5 days — far cheaper than the equipment damage and drain-and-refill bills neglected green pools eventually cause.
$349Green-to-Clean starting price
3–5 daystypical swim-ready timeline
95°F+summer temps that feed algae

Why Gulf Coast pools turn green so fast

Algae needs three things: light, heat, and food. A Texas Gulf Coast summer supplies all three in abundance. Water temperatures above 85°F accelerate algae growth exponentially, and a single pop-up thunderstorm can dilute your sanitizer and drop a bucket of organic debris into the pool in twenty minutes. Chlorine that looked fine on Monday can be gone by Thursday.

The most common triggers we see across Brazoria and Matagorda Counties:

  • A skipped week or two of maintenance — sanitizer dips below 1 ppm and algae spores bloom within days in summer.
  • Pump or filter failures — stagnant water turns even a chemically decent pool green; circulation is half the sanitation equation.
  • Stabilizer (CYA) problems — too little and sun strips chlorine in hours; too much and chlorine is "locked" and powerless despite testing positive.
  • Post-storm debris — leaves and grass clippings consume chlorine faster than a feeder can replenish it.

What's actually happening in the water

Green water isn't just tinted water — it's a living bloom with a chlorine demand far beyond normal dosing. Algae coats walls and floors in a slick biofilm that shelters more algae from sanitizer, which is why brushing matters as much as shocking. Until the biofilm is broken and the dead algae is filtered out, the pool will keep reverting.

What a professional recovery involves

Our Green-to-Clean service is a multi-visit process, not a single bucket of shock:

  • Inspect and restore circulation. A pump that won't prime or a clogged filter gets addressed first — shocking a stagnant pool mostly wastes chemical.
  • Brush everything. Walls, steps, seams, and behind ladders to break the biofilm.
  • Balance pH, then shock to breakpoint. Chlorine works dramatically better at proper pH; we dose to overwhelm the chlorine demand, not just nudge it.
  • Filter, cycle, repeat. Dead algae has to be physically removed — we run and clean the filter through the process (backwash or grid cleaning as equipped).
  • Retest over successive days until water holds clear, balanced readings, then hand it back swim-ready.

What it costs — and why prices vary

Green-to-Clean starts at $349 for an average residential pool. Final pricing depends on gallons, how far gone the water is, and the condition of the filtration equipment. A lightly tinted pool with a working pump is quick; a black-green pool with a seized pump is a different job. We confirm the exact number at the on-site assessment before starting — no surprises.

Why the DIY route often costs more: pouring shock into an unbrushed, unbalanced pool burns through chemical without clearing the water, and "shock until it's clear" frequently overstabilizes the pool so badly it needs a partial drain. One drain-and-refill in this area can exceed $500 in water plus the refill rebalance — more than the professional recovery would have cost.

Keeping it from coming back

Once the pool is clear, the economics flip hard in favor of prevention. A weekly maintenance plan keeps sanitizer, stabilizer, and circulation checked every seven days — which is exactly the gap algae exploits. Complete Pool Care starts at $199/month, less than most single recoveries, and it includes the LSI-based balancing that keeps water stable between visits.

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