💧 How to Balance Pool Chemistry & Treat Surface Stains
Keep your pool clean, clear, and stain-free with expert guidance from Premier Pool & Spa
⚖️ Ideal Pool Chemistry for Stain Prevention
Proper chemical balance isn't just for water clarity—it's essential for protecting your pool surfaces and equipment. Keep your levels within these ranges:
| 💧 Chemical | ✅ Target Range | 🔍 Why It Matters |
|---|---|---|
| pH | 7.2 – 7.8 | Controls water acidity & helps chlorine work |
| Alkalinity | 80 – 120 ppm | Buffers pH swings and protects surfaces |
| Chlorine | 1 – 3 ppm (⬇ to 1 ppm before stain treatment) | Sanitizes pool water |
| Phosphates | < 100 ppb | Reduces algae risk by limiting food sources |
| Calcium Hardness | 200 – 400 ppm | Prevents etching on plaster or scale formation |
| Cyanuric Acid | 30 – 50 ppm (outdoors) | Protects chlorine from sun degradation |
🧪 Get accurate results with our free in-store water testing
🛒 Or shop test kits & strips
🟤 How to Treat Pool Surface Stains
Stains in your pool can result from metal exposure, organic debris, or imbalanced water. Follow this step-by-step process to remove them safely:
🧼 Stain Treatment Steps
-
Lower Chlorine to 1 ppm or Less
High chlorine can interfere with stain removers. -
Turn Off the Pool Pump
This allows the stain remover to concentrate on the stain. -
Apply Stain Remover
Use 1 lb per 10,000 gallons. Broadcast near the stained area.
🛒 Shop stain removers -
Let Sit Overnight
Allow the stain remover to work without circulation or brushing. -
Brush Thoroughly the Next Day
A stainless steel algae brush works best for plaster or tough stains. -
Restart the Pool Pump
Begin filtration to circulate the water and remove residue. -
Vacuum Settled Debris
Use manual vacuuming for best results. -
Clean the Filter Thoroughly
Rinse cartridge filters or backwash sand/DE filters to remove loosened particles. -
Avoid Shocking the Pool for 7 Days
Keep chlorine under 2 ppm to prevent re-binding of any stains.
✅ Pro Tips to Prevent Stains
-
🍂 Remove leaves & debris quickly to avoid tannin or organic staining
-
🧪 Use metal sequestrants and phosphate removers regularly
Shop phosphate control -
🧹 Brush your pool weekly to reduce scale and prevent buildup
🛠 Got a Tough Stain? We Can Help.
Some stains may be metal-based (iron, copper), organic (leaves, algae), or from old scale. The wrong treatment can set them in permanently—so when in doubt, let us help.
📅 Book a professional stain diagnosis
📩 Contact us for expert advice
Premier Pool & Spa – Clean water. Clear answers. Local service you trust.
