Healing Waters International
A community-scale gravity-fed water treatment unit.
GravityPure UF is a gravity-driven water treatment system, sized for community or facility use and scalable from 500 to 10,000 liters per day. Interview with representative
Locations without access to safe drinking water but a reliable water source at the site location.
$6,700 for single, 1-membrane unit. Significant quantity discounts are available. Typical operating cost (including labor) is $0.005/liter.Interview with representative
Large-scale water treatment systems
Goal 6: Clean water and sanitation
Locations without access to safe drinking water but a reliable water source at the site location. Interview with representative
Batch assembled, up to 6 week lead time for large orders.Interview with representative
The GravityPure UF is purchased from Healing Waters (infoathealingwatersdotorg) by non-profits, NGOs, and other organizations or facilities around the world with a need for water treatment. The Healing Waters Engineering Team will work with you directly to size your equipment and make sure it’s a good fit for your context.Interview with representative
Shipping: 3 boxes or duffel bags, gross 54kg (for a 1-membrane unit)
Healing Waters has implemented over 200 water projects around the world. This particular design is newer, with 38 units produced to date.Interview with representative
List of the methods used for purification
Manufacturer-specified water treatment rate, measured in liters per hour
Laboratory-evaluated log scale removal rate of bacteria
Laboratory-evaluated log scale removal rate of viruses
Laboratory-evaluated log scale removal rate of protozoa
Reduction levels of heavy metals and/or arsenic through this treatment system
Manufacturer-specified maximum level of inlet turbidity (NTU)
Range or value of outlet turbidity levels (NTU)
Is there safe water storage integrated into this product?
What is the total number of liters that is recommended can be filtered?
List consumables of this product (power, filters, etc.)
GravityPure UF Dimensions:
- Assembled: 101 cm x 77 cm x 149 cm, 51 kg
- Typical assembly time: 2 hours
Overview: Interview with representative
- Core treatment is ultrafiltration: 0.02-micon pores for removal of bacteria, viruses, and other waterborne diseases
- Process is low-waste, with typically >90% net water recovery
- Integrated bottle washing station for sanitizing inside of bottles
- Any fresh water supply (not salt water)
- Must be tested for chemical contamination
- Should be stored in an elevated holding tank.
Power Supply: Must pump or manually feed water to at least 2 meters.
Healing Waters Engineering Team. Interview with representative
Extensive package of spare parts is included with each unit. Additional parts are available from Healing Waters, although many are locally available in urban areas. Interview with representative
The manufacturer provides a 1 year warrenty. Disposal is a mixture of non-hazardous waste and recyclable components (eg stainless steel frame). The most significant replacement cost is the Ultrafiltration Membrane. Typical membrane life is 2-5 years, with a $300 replacement cost. Interview with representative
GravityPure UF can achieve a production rate from 500 to 10,000 liters per day depending on water pressure and number of parallel Ultrafiltration membranes.
During design phase, 3rd-party performance testing by Dr. Nathan Hancock, Colorado School of Mines. Interview with representative
No hazards noted.
In some cases there may be a need for large water storage tank(s), sand pre-filtration, or activated carbon post-filtration. The Healing Waters Engineering Team will work with the users to make sure that they have the right solution for their context. Interview with representative
The Ultrafiltration membrane is produced in an ISO 9001 certified facility and is NSF 61 listed. Interview with representative
Field and laboratory testing
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