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Cleansol Chlorine Tablets for Water Tank
BestsellerAbout this item
Cleansol Chlorine Tablets for Water Tank disinfect stored water in overhead and underground tanks – they kill germs, control bad smell and stop slimy build-up. Made of SDIC (sodium dichloroisocyanurate), a chlorine-releasing compound widely used for water disinfection. Slow-dissolving tablets in 5 g, 10 g and 20 g sizes – no measuring, no equipment.
Product information
| Active ingredient | Sodium dichloroisocyanurate (SDIC / NaDCC) |
| Form | White, slow-dissolving tablets |
| Tablet sizes | 5 g × 30 · 10 g × 30 · 20 g × 35 |
| For | Overhead, underground and loft water tanks |
Why choose it
- Kills germs in stored water: bacteria, viruses and algae.
- Controls smell and slime: keeps tank water fresh between cleanings.
- Measured dose: one tablet per tank size – no measuring, no mixing.
- Slow-dissolving: dissolves fully, leaves no sludge at the bottom of the tank.
- For homes and institutions: apartments, societies, schools, clinics and hotels.
Dose chart
| Water in tank | Tank disinfection (label dose) | Drinking water (milder dose) |
|---|---|---|
| 500 L | 1 × 5 g | 1 × 5 g – use for washing first * |
| 1,000 L | 1 × 10 g | 1 × 5 g – use for washing first * |
| 2,000 L | 1 × 20 g | 1 × 5 g |
| 5,000 L | 2 × 20 g + 1 × 10 g | 3 × 5 g |
| 10,000 L | 5 × 20 g | 3 × 10 g |
* For tanks under 1,500 L even one 5 g tablet is stronger than drinking strength. Let the water stand and use it for washing and bathing first; drink only after a chlorine test kit reads 0.2–1 mg/L at the tap.
🧮 Any tank size: use our free water tank calculator – it gives the dose for disinfection and drinking water, and can measure your tank. 📘 Full guide: chlorine tablets for water tanks – dose chart, drinking water & safety →
How to use
- If the tank has sludge or slime, wash the empty tank first (see our tank cleaning guide).
- Fill the tank and note the litres of water in it.
- With dry gloves, drop the correct number of tablets into the water.
- Let them dissolve fully, then wait at least 30 minutes before using the water.
- Treat again only when fresh, untreated water is added.
Good to know
- Disinfects only: it does not reduce TDS or hardness, and does not remove sand, silt, rust, heavy metals or chemicals.
- Drinking water: drink only when free chlorine at the tap is 0.2–1 mg/L (BIS IS 10500). For drinking and cooking, we recommend an RO/UV purifier and a one-time lab test of your source water.
- Safety: handle with dry gloves. Never mix with acids, toilet cleaners or other chemicals. Store closed in a cool, dry place, away from children and moisture.
Frequently asked questions
How many chlorine tablets for a 1,000 litre tank?
For tank disinfection, 1 × 10 g tablet (or 2 × 5 g). For drinking water, add one 5 g tablet, use the water for washing first, and drink only once it tests 0.2–1 mg/L.
How long should I wait before using the water?
Let the tablet dissolve fully, then wait at least 30 minutes.
Is the water safe to drink after treatment?
The tablets disinfect water, but drinking safety also depends on your source water. Use the milder drinking-water dose, check free chlorine at the tap (0.2–1 mg/L), use an RO/UV purifier for drinking, and get the water lab-tested once.
Which tablet size should I buy?
5 g suits most homes and drinking-water use. 10 g and 20 g are convenient for larger tanks, societies, schools and hotels.
Do chlorine tablets reduce TDS or remove dirt?
No. They only disinfect. Use an RO system for TDS, and clean or filter the tank for dirt and rust.
Can I use them in a swimming pool?
No – pools need a different dose and pool-grade chlorine. See our pool chlorine guide.
Information is for general guidance. Cleansol cannot guarantee that water is safe to drink, as this depends on the source water. For bulk supply to societies, schools and hotels, WhatsApp 98290 05860.
Prefer road transport? For orders of 25 kg and above, tick Send by road transport (to-pay) in the cart and add your transporter’s name and number. You pay the freight to the transporter on delivery.
Dispatched in 1–2 working days from Jodhpur. Delivery across India.
In stock
GST invoice with every order
- Ships from
- Cleansol, Jodhpur
- Sold by
- Cleansol (manufacturer)
- Invoice
- GST invoice provided
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Specifications
| Chemical name | Sodium dichloroisocyanurate (SDIC / NaDCC) |
|---|---|
| Also known as | NaDCC tablets, water tank chlorine tablets, water purification tablets |
| Grade | Household / Commercial |
| Purity / strength | SDIC chlorine tablets – slow-dissolving |
| HSN code | 29336990 |
| Packing | 5 g × 30, 10 g × 30, 20 g × 35 |
Typical values for reference only, not a guaranteed specification. Exact values vary by batch and manufacturer.
Applications & industries
- Overhead & underground water tank disinfection
Storage & handling
Safety & first aid
Technical support & disclaimer
For usage, dosage, or formulation guidance, email info@cleansol.in or WhatsApp +91 98290 05860.
Specifications are typical values for reference only. Users must verify suitability and comply with applicable regulations before use. This product is intended for professional and commercial use; the buyer is responsible for safe handling, storage and disposal. Cleansol assumes no liability for misuse.