Budget: 5000 UAH Deadline: 2 days
Option 1: buy 4 m³/h, then add 6 m³/h
Pros:
✅️ Lower initial investments
✅️ Less risk during water testing and selection errors
✅️ Can install the same model and connect via collector
✅️ Modularity (if one breaks, the second will still work)
✅️ Flexibility to changing needs
Option 2: Buy 6 m³/h immediately, then add 4 m³/h
Pros:
✅ Lower total cost per m³/h (less automation and casing cost)
✅ Easier to integrate one large module into the system
✅ More stable water quality
Cons:
— Higher initial investments
— During downtime, you lose all productivity
— Less flexibility (harder to sell if 6 m³/h is not needed anymore)
Option 3: Buy 10 m³/h immediately
✅ Cheapest price per cubic meter of capacity
✅ One pump, one automation unit
✅ Less space required
— High initial investments
— Excess capacity if needs decrease
— During downtime, everything is lost
Cost comparison
Approximately (depending on brand, water purification level, water pressure):
4 m³/h → 10–15 thousand USD
6 m³/h → 13–18 thousand USD
10 m³/h → 20–25 thousand USD
Sum of 4 + 6 = 23–33 thousand USD, which is usually 10–15% more expensive than a single 10 m³/h,
but provides flexibility and phased budget loading.
What is more advantageous:
✅ If there is a risk of changing consumption volume / limited budget → 4 m³/h + 6 m³/h phased
✅ If the volume is definitely needed and there is a budget → immediately 10 m³/h, cheaper and simpler
✅ If the network is unstable or a reserve is needed → modularity (4+6) is better.
Recommendations for a modular system:
🔹 Create a unified pre-filtration and pumping station (sand filter + carbon filter + dosing) to avoid duplication.
🔹 Use the same membranes and casings to simplify maintenance.
🔹 Prepare a frame for the possibility of installing a second module without redoing pipelines.
🔹 Consider solar / night generation to reduce energy costs.
If you want, send:
– photos / diagram of the site,
– water sample,
– irrigation schedule,
and I will prepare a complete techno-economic comparison + a schematic based on your conditions without water.
