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Water Storage Tanks for Water Refill Stations: What Size and Type?

Herritech engineering teamUpdated 30 September 20263 min read

Water Storage Tanks for Water Refill Stations: What Size and Type?
Quick answer: A water refill station needs two kinds of storage: a raw-water tank (at least one day of supply, so outages do not stop sales) and a clean product-water tank after treatment (enough for your busiest 2–3 hours). Use food-grade plastic or stainless steel for product water, keep it covered and clean it on a schedule.
Key facts
  • Raw water: hold at least one full day of expected sales
  • Product water: cover the busiest 2–3 hours so a smaller plant keeps up
  • Food-grade plastic or stainless steel only for treated water
  • Clean and disinfect product tanks regularly and keep records
On this page
  1. How big should the tanks be?
  2. Plastic or stainless steel?
  3. Tank prices
  4. Built-in storage options
  5. Tank hygiene
  6. Frequently asked questions

How big should the tanks be?

Daily salesRaw-water tankProduct-water tank
1,000 L1,000–2,000 L300–500 L
2,500 L3,000 L500–1,000 L
5,000 L5,000–10,000 L1,000–2,000 L

Plastic or stainless steel?

Tank prices

Storage tanks from our shops:

Current listed prices incl. VAT (updated 30 September 2026).

H-TECH purified water station storage options 200 to 1000 litres
Refill stations with built-in 200 L to 1,000 L stainless storage.

Built-in storage options

ModelSize / capacityPrice
200 LITERS WATER VENDING MACHINE200 LKSh 150,000
250 LITERS WATER ATM MACHINE250 LKSh 170,000
H-Tech 3-in-1 Municipal UF 250L250 LKSh 240,000
300 LITERS WATER ATM MACHINE300 LKSh 190,000
H-Tech 3-in-1 Municipal UF 500L500 LKSh 280,000

Current listed prices incl. VAT (updated 30 September 2026). Full range: Water vending machines price list.

Tank hygiene

Frequently asked questions

What size tank does a water refill shop need?

Hold at least one day of sales as raw water, plus a product-water tank for your busiest 2–3 hours.

Can I use a plastic tank for purified water?

Yes, if it is food-grade, covered and cleaned regularly. Stainless steel is easier to keep hygienic.

How often should I clean the storage tank?

On a fixed schedule set in your hygiene plan, and whenever tests or inspections require; record every cleaning.

Do refill machines come with tanks?

Many H-TECH stations include built-in stainless storage (200 L to 1,000 L); see the table above.

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