Water
Source, quality and solids.
Terra Compass Sourcing · US business procurement
Fertigation, specified around your water
An independent sourcing partner for growers, irrigation contractors and equipment importers. Share your crop, water analysis, quantity and destination to request factory quotes for the injection and control scope you need.
Request Factory Quotes
Injection scope
Match dosing to the operating range
Ask factories to quote the water-driven injector or powered dosing arrangement against minimum and maximum flow, available pressure and chemical compatibility. Keep bypass plumbing, filters and backflow protection in the written scope.
Compare inquiry options
Connected controls
Keep field decisions visible
Define the sensors, communication interface, manual fallback and commissioning responsibilities before selecting a connected controller. Remote monitoring is an option to verify, not proof that a system will fit your farm.
Review control questions
Water-related documents belong to the quoted product.
- Water analysis
- Flow / pressure curve
- Material compatibility
- Backflow arrangement
WaterSense or other water-efficiency documentation must be checked for the exact model and applicable program. A general label does not establish fertigation suitability, supplier approval or this service's certification.
Four checks before a price comparison
Hydraulics
Flow and pressure range.
Dosing
Recipe and wetted materials.
Control
Power and field interfaces.
These labels identify procurement checks, not performance claims. Provide system flow rate in gpm or m³/h and pressure in psi or bar, with the measurement location. An injector sized from peak flow alone may need a separate assessment at low-flow operation.
Different crops change the brief
Scroll through purchasing contexts, then refine the requirements for your own site.
Greenhouse vegetables
Describe growing media, nutrient stock tanks and whether drainage is collected. Include the EC and pH measurement points for supplier review.
Application checksOrchards and vineyards
Record blocks, elevation changes and the irrigation schedule. Ask how injection is coordinated with variable zone demand and flushing.
Block requirementsField vegetable rows
Specify drip irrigation emitter characteristics and seasonal handling. Filtration maintenance and replacement tubing affect the delivered scope.
Field requirementsNursery containers
Separate small frequent irrigation events from the total daily water demand. State the number of independently managed fertilizer recipes.
Nursery scopeFrom an open question to a comparable offer
Record the unknowns
List existing pipework, quantity, installation scope and seasonal delivery needs. Mark unmeasured water quality as an open item.
Ask candidate factories
Request configuration, material specifications and drawings against the same scope. Alternatives remain separate from the base quotation.
Normalize total cost
Compare equipment, spares, packing, freight, duties and support in one currency and on the same destination basis.
Agree verification
Resolve sampling, commissioning and acceptance responsibilities before purchase. Read the procurement checklist.
Put the site conditions beside the quantity
A useful request can start with the parameters you know. Include your target budget and supplier preference if available; unresolved specifications can be reviewed before factories quote.