Pool Care Blog
Spring Pool Opening: Get Swim-Ready Before the Texas Heat Hits
Maintenance · January 5, 2026 · 4 min read
In Houston, "spring" comes early. By March, afternoon temperatures are hitting the 80s, and your pool is warming up whether you're ready or not. Warm stagnant water plus dormant chemistry equals algae bloom. The window to get ahead of it is February through early April.
Here's the full spring opening process our team follows — whether you're DIYing it or want to know what we do when we show up.
Step 1: Equipment Inspection
Before adding a single chemical, inspect everything. Winter can cause freeze damage to pipes, fittings, and equipment — even in Texas. Look for cracked PVC, leaking unions, damaged o-rings, and any signs of rodent nesting in the equipment area. Turn the pump on and check for proper priming, unusual noise, and leaks.
Step 2: Clean the Pool
Remove any cover (if used), skim all debris, brush walls and waterline, and vacuum the floor. If there's significant leaf buildup on the bottom, vacuum to waste rather than through the filter — this prevents clogging and saves time.
Step 3: Filter Maintenance
Start the season with a clean filter. For cartridge filters, soak and rinse cartridges (or replace if over 2 years old). For sand filters, backwash and inspect the sand. For DE filters, break down, clean the grids, and recharge with fresh DE powder.
Step 4: Water Level & Chemistry
Fill the pool to mid-skimmer level, then run a full chemistry panel. After winter, you'll typically find low chlorine, drifted pH, and possibly elevated phosphates from organic debris. Here's the order of operations for balancing:
Adjust alkalinity first
Bring to 80–120 ppm. This stabilizes everything else.
Balance pH
Target 7.4–7.6. Use muriatic acid to lower, soda ash to raise.
Check CYA
If below 30 ppm, add stabilizer. If above 80 ppm, you may need a partial drain.
Shock the pool
A spring opening shock of 2–3x normal dose clears any dormant bacteria or algae spores.
Add phosphate remover if needed
Levels above 500 ppb can feed algae even with good chlorine levels.
Step 5: Set Your Schedule
Spring is the time to adjust pump run times for the warmer months. Increase from winter's 6–8 hours to 8–10 hours daily. As summer peaks (June–August), you may need 10–12 hours. Program your timer or automation system, and consider running the pump during off-peak electricity hours (9pm–6am) to save on energy costs.
The key to a trouble-free summer pool is getting ahead of the heat. Once temperatures are consistently above 85°F and the pool is already green, you're playing catch-up all season. A proper spring opening puts you in control from day one.
Need Professional Pool Help?
Admiral Pool Service has been keeping Greater Houston pools crystal clear since 2019. Licensed, insured, and PHTA certified.
Or call (281) 624-6191.
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