When renting makes sense
- Bypass or interim capacity during a plant upgrade
- Seasonal peaks at resorts, camps and events
- Construction sites and temporary work camps
- Emergency response after equipment failure or storms
- Pilots on your own mixed liquor before a capital decision
What a rental includes
We rent membrane modules; the tank, blowers, pumps and controls usually come from the owner, an integrator or a temporary-plant provider. We help confirm fit, provide start-up and cleaning guidance, and agree on return conditions. Terms depend on duration and configuration, so each rental is quoted.
Rent to own and pilots
Some owners rent during design and buy once performance is proven. For pilots, see our MBR pilot page. For details on terms and logistics, visit Rentals.
Worked sizing example
Take a six-month bypass at 105,669 gpd (400 m³/day) during a plant upgrade:
| Item | US | Metric | Note |
|---|---|---|---|
| Average flow | 105,669 gpd | 400 m³/day | about 73 gpm (16,667 L/h) |
| Design flux (gross) | 11.8 gfd | 20 LMH | Zyramic design guidance |
| Derate for relaxation and cleaning | ~20% | ~20% | |
| Net flux | ~9.4 gfd | ~16 LMH | |
| Membrane area needed | ~11,212 ft² | ~1,042 m² | average flow ÷ net flux |
| Swing-8 cartridges | ~84 | ~84 | 135 ft² (12.5 m²) each |
| Peak factor | ~2.0 | ~2.0 | |
| Peak flow | ~211,338 gpd | ~800 m³/day | extra area, short-term higher flux, or equalization |
This is an illustration only; a real design also checks temperature, MLSS, redundancy and the cleaning schedule.
Tips for a smooth project
- Compare modules on lifecycle, not area alone
- Plan how replacement parts will be sourced later
- Allow room for handling and inspection
- Check cassette dimensions before ordering replacements
Next step
A good way to see which design choices matter most for your plant is to look at your own maintenance history. Tell us what has needed attention in the past, and we will explain which of our options fits it best.
Sizing considerations
To give a useful recommendation we usually need:
- Project location (US only for rentals)
- Duration and start date
- Flow and feed
- Available tank or container
- Who will operate the system
Most relevant product: Rentals. See also replacement membranes, rentals and how to choose.
Why engineers look at Zyramic flat-sheet modules
| Item | Details |
|---|---|
| Smaller sheets, less wear and tear | each sheet flexes less in service, and a damaged unit affects less area. |
| Strong wide membrane welds | designed to resist delamination over the membrane's life. |
| Thick, robust membrane | about 250 microns including support. |
| Assembled in Poughkeepsie, NY | of domestic and imported components. In our Poughkeepsie shop we cut and weld membrane sheets to plates, build module frames and assemble complete modules. For funded projects, tell us your domestic-content requirements and we'll review what we can document. |
| Buy, rent or replace | new modules, rentals and pilots for US projects, and replacement membranes that fit many existing cassettes. |
Performance and life depend on pretreatment, design flux and operation; flux figures are Zyramic design guidance, sized to each project.
Frequently asked questions
Are rentals available outside the US?
Rentals are currently for US projects. Purchase is available elsewhere.
How long can I rent?
Durations vary by project; tell us your timeline.
Can a rental become a purchase?
Ask us about converting a rental.
Do you provide operators?
We provide guidance and support; site operation is by the owner or their contractor.
How quickly can a rental arrive?
It depends on availability and configuration. Contact us early for planned projects; for emergencies, call.
What happens at the end of the rental?
Modules are cleaned according to agreed procedures and returned, or converted to a purchase where agreed.