Pool Care Tips for Charlotte-Area Pool Owners
Short, practical guides to keeping your water clear and your equipment healthy through every Carolina season. Questions? Call (704) 989-5191.
- 1. Water Chemistry
- 2. Filter Gauge
- 3. Salt Cell Care
- 4. Pollen Season
- 5. Summer Storms
- 6. Fall & Winter
1. Water Chemistry, Simplified
Five numbers matter most. These are common target ranges (from Hayward, with CDC minimums for chlorine and pH). Your pool’s surface and equipment may call for slight adjustments.
| Test | Target | Why it matters |
|---|---|---|
| Free chlorine | 1–3 ppm (CDC: at least 2 ppm if you use stabilizer) | Kills germs and algae |
| pH | 7.2–7.8 | High pH weakens chlorine; low pH corrodes equipment |
| Total alkalinity | 80–120 ppm (vinyl: 100–150) | Keeps pH from swinging |
| Calcium hardness | 200–400 ppm (vinyl: 175–300) | Too low is corrosive; too high causes scale |
| Cyanuric acid (stabilizer) | 30–50 ppm outdoors | Protects chlorine from sunlight |
Tip: Fix alkalinity first, then pH. Hayward calls alkalinity a ceiling over your pH, so pH is easier to control once alkalinity is right.
2. Read Your Filter Gauge
Your filter’s pressure gauge is a simple early warning.
- Write down the pressure right after a cleaning. That’s your clean baseline.
- When it reads about 8–10 psi above that baseline, it’s time to backwash a sand or DE filter or clean the cartridges.
- If pressure climbs quickly right after a cleaning, or never comes back down, the filter media may need a deep clean or replacement.
- Low pressure plus weak flow usually points to a clogged basket, an air leak, or a pump problem, not the filter.
3. Salt Cell Care
- Look through the cell for white scale or debris between the plates.
- Keep salt within your manufacturer’s range. Too low and the cell can’t keep up; check the display for low-salt warnings.
- Keep pH and calcium in range. Scale-forming water is the number-one cause of crusty cells.
- If a cell needs an acid cleaning, follow the manufacturer’s directions exactly. Always add acid to water, never water to acid, and wear eye protection and gloves. Or let us handle it.
- In cold weather, chlorine output may drop or stop. That’s normal for many cells. Your chlorine needs drop in cold water too.
4. Spring Pollen Season
Every spring, yellow pine pollen coats cars, decks, and pools across North Carolina. NC State Extension says tree pollen typically peaks between late March and early April.
- Skim often. Pollen floats, and a skimmer basket full of it slows circulation.
- Watch your filter pressure. Pollen loads filters fast. Expect to backwash or clean cartridges more often.
- Run the pump longer during heavy pollen days.
- Plan a filter cleaning once the yellow dust settles.
Pollen can look like yellow algae. If it brushes away easily and sits mostly on the surface, it’s likely pollen.
5. Summer Heat and Pop-Up Storms
Charlotte summers are hot and humid. NC State Climate Office notes that summer afternoons often bring short, pop-up thunderstorms with heavy rain and gusty wind.
- Heat burns chlorine. Test more often in July and August, especially after pool parties.
- Storms dilute and dirty the water. Heavy rain can lower chlorine and shift pH and alkalinity. Wind blows in leaves and debris.
- After a storm: Empty baskets, skim, check the water level, run the pump, and retest. Shock if chlorine has dropped.
- Keep the water level in the middle of the skimmer opening. Too high after rain and the skimmer can’t skim; too low and the pump can draw air.
- Lightning: Get out of the pool at the first rumble of thunder.
6. Fall, Winter, and Freeze Protection
According to NC State Extension, Charlotte’s average first freeze is around early November and its average last freeze is around April 1. Our winters are usually mild, with occasional hard freezes.
Two common approaches:
Keep it running
Many homeowners keep water circulating all winter. Moving water is much less likely to freeze. Make sure freeze protection is set up on your pump or automation, and check it before the first cold snap.
Close it
Lower the water as needed, blow out and plug lines, drain the pump, filter, heater, and other equipment, and balance the water before closing.
Want help closing your pool? Ask us about availability.
Either way:
- Know your heat pump’s limits. Hayward says not to rely on a heat pump to keep water above freezing. During a freeze, run the circulation pump continuously.
- Drain any equipment that won’t be running during an extended freeze.
- After a hard freeze, look for cracked pump housings, filter tanks, or PVC fittings before restarting.
- Keep leaves out. Fall leaves that sit on the floor all winter stain plaster and feed algae in spring.
Not sure your freeze protection is working? Call us before the first cold night.
Questions?
Call (704) 989-5191 or email lane@elitepoolprofessionals.com. Monday–Friday, 8:30am–5:00pm.