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📝 Arun Hitech Blog — May 2026

Hard Water & Solar Water Heater in Coimbatore — Complete Guide 2026

Coimbatore has hard water (200-400 TDS). This can affect solar water heaters if not handled correctly. Here is your complete guide to choosing and maintaining solar heaters for Coimbatore's hard water — May 2026.

Coimbatore Water TDS Levels by Area — 2026

Area TDS Level Hardness Recommended
Kariyampalayam200-280 ppmModerateTRU HOT PRO ✅
Saravanampatti250-320 ppmModerate-HighTRU HOT PRO ✅
Peelamedu280-350 ppmHighTRU HOT PRO SS ✅
Sulur/Singanallur300-400 ppmVery HighSS Tank Model ⭐

How to Prevent Hard Water Damage in Solar Heater?

1️⃣
Choose Glass-Lined Tank
V-Guard TRU HOT PRO glass-lined tank resists scale and corrosion from hard water
2️⃣
Annual Descaling Service
Arun Hitech descaling service ₹800 removes calcium deposits from tubes and tank
3️⃣
Install Softener Filter
Pre-filter reduces TDS before water enters the solar heater — extends life by 5+ years
4️⃣
SS Tank for Very Hard Water
Stainless Steel tank model recommended for Sulur, Singanallur areas (TDS 350+)

Get the right solar heater for your Coimbatore water quality

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