A first layout in 3 days, free.
Send species, target output and site size. In 3 days you get a tank layout, an equipment list and a flow balance, so you can judge the project before you spend. If the numbers do not work, we say so.
first layout
layout, list, flow balance
drawing fee, against the order
enough to start
What the first layout gives you, and what the drawings add.
Tanks
Number, size and position
Dimensioned positions, levels, drain falls
Equipment
List of every unit and why it is that size
Models, connections and installation details
Flow balance
Flow, feed load and oxygen across every stage
Pipe sizes and head losses
Building
What the building must provide
Loads, openings, power and water points
Assumptions
Stated, for you to confirm
Confirmed values
Use
Judge the project; compare suppliers
Build and install from
The drawing fee is credited against the equipment order.
Worked back from your harvest.
A RAS is designed in reverse: harvest size and tonnage set the standing biomass, density and feeding rate set the peak daily feed, and the feed sizes every treatment stage (). That is why we ask for output before anything else.SRAC Publication 282
- sets standing biomassTarget harvest
- agreed per speciesDensity
- sizes biofilter, oxygen and degassingPeak daily feed
- sizes drum filters and pumpsPeak flow
What we ask for, and why.
Species
Sets temperature, density, oxygen and water quality limits.
Target annual output and harvest size
Sets standing stock and feed load.
Site or building size
Sets tank layout and treatment area.
Water source and salinity
Sets materials and treatment stages.
Local climate
Sets heating, cooling and building needs.
Power supply
220, 380 or 110 V, and backup.
Existing tanks or building
For upgrades and fit-outs: photos or drawings.
Missing a number? Send what you have. We work from stated assumptions until you confirm them.
What tells you early that a project will not work.
The first layout is also a test. These are the points where we tell clients to stop or change the plan.
Climate vs species
Heating or cooling the water all year for a species far from its range
Water supply
Make-up water too little, too salty or untreated for the species
Power
No reliable supply, and no plan for backup
Building
Too little height, floor load or space for the treatment loop
Output vs site
Target output needs a density the species or system cannot hold
Team
No one on site trained to run a RAS daily
Four steps.
3days
First layout
Free. Based on your numbers and stated assumptions.
Refine
We adjust the layout with you until the design fits.
Detailed drawings
Charged, and credited against the equipment order.
Quote
Equipment, services and schedule.
It lets you judge the project before spending. Detailed drawings are charged and credited against the order.
Send what you have. We state the assumptions we use, and you confirm or correct them.
The layout gives you the equipment list and flow balance. Budget numbers come with the quote, based on your inputs.
Yes. We check flow balance, materials and redundancy.
Yes. The feasibility checks above are part of the first layout.
Send three numbers. Get a layout in 3 days.
Send species, target output and site size. A first layout comes back in 3 days, free.
- Tank layout
- Equipment list with reasons
- Flow balance
- No obligation to order