RO Plant Size Calculator
- LPH = daily need ÷ running hours
- Feed water = daily need ÷ recovery
- Reject = feed − product
- Recovery depends on the water test
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RO Plant Size Calculator
Example figures only: replace them with your own. Results update as you type.
Why Recovery Matters
Salty or hard water forces lower recovery to avoid scaling the membranes, which means more feed water and more reject. Your borehole must supply the feed volume, and the reject needs a safe outlet. See why RO plants need antiscalant.
Add a Margin
Choose the next plant size up, so the plant does not run flat out all day and has room for growth. A storage tank for purified water covers busy hours.
RO Plants by Size
Htech 250LPH RO PURIFIERKSh 290,000
RO Machine 250lph (1 Membrane System)KSh 290,000
Htech 500lph Ro water purifierKSh 380,000
Htech 750lph Ro purifier plantKSh 500,000
H-Tech 1000lph Industrial RO Water purifierKSh 929,775
H-Tech 2000 LPH Industrial RO SystemKSh 1,331,550
H-Tech 3000 LPH Industrial RO SystemKSh 1,694,700
H-Tech 4000 LPH Industrial RO SystemKSh 2,536,892
H-Tech 5000 LPH Industrial RO SystemKSh 2,815,200| Product | Price |
|---|---|
| Htech 250LPH RO PURIFIER | KSh 290,000 |
| RO Machine 250lph (1 Membrane System) | KSh 290,000 |
| Htech 500lph Ro water purifier | KSh 380,000 |
| Htech 750lph Ro purifier plant | KSh 500,000 |
| H-Tech 1000lph Industrial RO Water purifier | KSh 929,775 |
| H-Tech 2000 LPH Industrial RO System | KSh 1,331,550 |
| H-Tech 3000 LPH Industrial RO System | KSh 1,694,700 |
| H-Tech 4000 LPH Industrial RO System | KSh 2,536,892 |
| H-Tech 5000 LPH Industrial RO System | KSh 2,815,200 |
Current listed prices incl. VAT (updated 4 October 2026).
More: industrial RO prices, vending plant sizes.
Watch: RO purifiers and water ATMs
Frequently asked questions
How do I calculate RO plant capacity?
Divide the purified water needed per day by the hours the plant can run per day.
How much reject water does an RO plant produce?
Feed water minus product; at 50% recovery, one litre of reject for every litre of product.
What size RO plant do I need for 10,000 litres per day?
Running 10 hours a day, about 1,000 LPH; choose the next size up for margin.
How much does an RO plant cost in Kenya?
It depends on capacity: see the price table above, from small 250 LPH plants to industrial systems.
What is RO recovery?
The percentage of feed water that becomes purified water.