Pureflow Bio

PUREFLOW BIO / ENGINEERING FIELD GUIDE

NFT vs Deep Water Culture vs DripWhich Hydroponic System to Choose

Compare the main hydroponic systems on crops, cost, risk and filtration needs to choose the right one.

7 MIN GUIDEUPDATED NOVEMBER 2026
Concept illustration of greenhouse growing beds, roots, a reservoir and return-water treatment.SYSTEM CONCEPT
AI-generated educational concept illustration; not a Pureflow installation photograph or an approved construction drawing.
01Understand the mechanismInspect the relevant process stages.
02Review the operating dutyKeep assumptions and measured values visible.
03Prepare the next decisionUse the guide, tools and project checks.
INTERACTIVE PROCESS ATLAS

See the mechanism.
Understand the duty.

Select a route or a stage to inspect the process. The cutaway explains the equipment and water environment; it is a teaching illustration, not a project drawing.

Swipe horizontally to inspect the equipment. Stage buttons below also centre the selected component.
Recirculating nutrient solution and root zonePUREFLOW / INTERACTIVE PROCESS ATLASCONCEPT LAYOUT · NOT TO SCALEROOT ZONE / IRRIGATIONMANAGED RESERVOIRRETURN-WATER TREATMENTMEASURED SUPPLYMotion explains the process; it is not a measured flow rate or biological time model.
Managed solution reaches the growing system and returns through the defined collection route.
Selected process stage

Supply the roots

Use measured irrigation and peak return duty.

How it works

A managed nutrient solution reaches the growing system at a flow suited to its design.

What to establish
  • Use measured irrigation and peak return duty.
  • Record nutrient chemistry, temperature and root-zone conditions.
  • Coordinate treatment with the growing method and crop programme.

Continue this guide ↗

Motion explains direction and mechanism; it does not represent measured performance. Geometry, stage order, pipe routes and equipment configuration are conceptual. Use the approved project design, operating instructions and verified model data.

Key takeaways

  • NFT: A thin film of solution runs along channels past the roots.
  • Deep water culture: Roots sit in aerated solution under rafts.
  • Drip: Drippers deliver solution to each plant, good for tall fruiting crops such as tomatoes and cucumbers.
  • Water treatment for all three: Whichever you pick, filter and disinfect recirculated solution.
Reference illustration for NFT vs Deep Water Culture vs Drip: Which Hydroponic System to Choose
Equipment reference visual; not evidence of a completed installation.
THE SHORT ANSWER

Nft

A thin film of solution runs along channels past the roots. It is water-efficient and good for lettuce and herbs, but it fails quickly if the pump stops, because roots dry out.

NFT vs Deep Water Culture vs Drip - Pureflow Bio
Reference visual. Equipment configuration and project details must be confirmed separately.
HYDROPONICS

Deep water culture

Roots sit in aerated solution under rafts. It is forgiving, thermally stable and a good starter. It needs good aeration and cool water. See deep water culture.

PLANNING WORKBENCH

Work with your own numbers.

Use the tools below to explore the relevant arithmetic. Enter measured values or declared assumptions. An estimate does not establish equipment capacity, biological performance or a safe operating limit.

Hydroponic return-flow scenario

Convert a daily irrigation plan and drainage fraction into an average return flow.

Assumptions and limits

Average flow can be far below short irrigation peaks. Measure the peak and account for solids, chemistry and disinfection before selecting equipment.

—Irrigation · m³/day
—Drainage · m³/day
—Average return flow · m³/h
Enter your values, or load the labelled arithmetic example. No design values are pre-filled.
FormulaDaily drainage m³ = area × application × drainage share ÷ 100,000. Average return flow = drainage ÷ hours.
Convert units before you calculate
Choose units and enter a value.

Planning arithmetic · inputs remain visible for review · example values are not operating recommendations

HYDROPONICS

Drip

Drippers deliver solution to each plant, good for tall fruiting crops such as tomatoes and cucumbers. Emitters can clog, so clean water matters.

HYDROPONICS

Water treatment for all three

Whichever you pick, filter and disinfect recirculated solution. See filters for hydroponics.

HYDROPONICS

A simple rule

Leafy greens: NFT or DWC. Fruiting crops: drip. Learning: DWC.

PROJECT REVIEW

Use the real irrigation return

Use these questions to prepare a project brief or an operating review. Check an item only when the information has been recorded for your installation.

0 of 3 checked

This checklist is a working aid in the current page session, not a saved maintenance record.

QUESTIONS

NFT vs Deep Water Culture vs Drip FAQ

Which is cheapest to start?

DWC is usually simplest and cheap to start.

Which uses least water?

NFT and drip are very efficient when well managed.

KEEP READING

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Share your application, operating volume, actual flow, loading and the question you are trying to resolve.

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