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Which RO Vending Plant Size Do You Need? 125, 250, 500 or 1000 LPH

By the Herritech Ventures engineering team · Updated 29 September 2026

Which RO Vending Plant Size Do You Need? 125, 250, 500 or 1000 LPH
Quick answer: Divide the litres you expect to sell per day by the hours your plant can run, then add about 25% headroom. For example, 1,500 litres a day over 10 hours needs 150 LPH, so a 250 LPH plant is the safe choice. Busy estates and wholesale refill points usually need 500–1000 LPH.
Key facts
  • Plant size (LPH) = daily litres ÷ running hours + 25%
  • Storage tanks let a smaller plant meet peak demand
  • Borehole water with high TDS needs RO; low-TDS municipal water may only need UF
  • Bigger plants lower the cost per litre

Quick sizing table

PlantOutput in a 10-hour daySuits
125 LPHabout 1,250 LA new shop, small estate
250 LPHabout 2,500 LA busy estate shop
500 LPHabout 5,000 LMarket, several estates, delivery business
1000 LPHabout 10,000 LWholesale refill, bottling

Current prices

Current listed prices incl. VAT (updated 29 September 2026). Full range: Water vending machines price list.

See the full RO vending station capacity guide with real photos.

Storage makes a smaller plant go further

Real H-TECH 500 LPH borehole RO 3-in-1 machine
A real H-TECH 500 LPH borehole RO 3-in-1 machine.

Customers come in waves: mornings, evenings and weekends. A clean product-water tank filled overnight lets a 250 LPH plant serve peaks it could not meet directly.

Before you choose

Next: how to start a water refilling business and KEBS certification for bottled water.

Frequently asked questions

Which size RO plant should I start with?

Most new refill shops start with 125–250 LPH plus a storage tank, then add capacity as sales grow.

How many litres does a 250 LPH plant produce per day?

About 2,500 litres in a 10-hour day, more if it runs longer.

Is a bigger plant more profitable?

Only if you can sell the water. A bigger plant lowers the cost per litre but costs more upfront.

RO or UF for my refill shop?

RO for borehole or high-TDS water; UF for low-TDS municipal water.