Double Walled Underground Bulk Brine and Salt Tank SystemsDouble Walled Underground Bulk Brine and Salt Tank Systems

The Nancrede Engineering Double Walled Underground Bulk Brine and Salt Tank Systems are designed to work seamlessly with your industrial water softener system or processing plant to drastically reduce salt costs and remove liability from injury due to loading tons of salt into a brine tank.  As an engineering company, not a salt company, our focus is designing the best system to integrate with your industrial water softener or process in your new or existing building. We also offer above ground bulk brine systems and can consult on which option works best for your facility. Ideal applications for bulk underground brine systems include any facility with high salt consumption or management who doesn’t want to put their team at risk for injury from salt loading.  Some ideal clients for Double Walled Underground Bulk Brine and Salt Tank Systems include:

  • Manufacturing
  • Food Processing
  • Municipal
  • Refinery
  • Beverage Processing
  • Pharmaceutical
  • Hospitals
  • Health Care Facilities
  • Universities
  • Correctional Facilities
  • Hotels
  • Apartment Buildings

Cut Salt and Water Costs while Reducing Environmental Footprint

Buying salt in bulk will reduce salt and labor costs dramatically.  And with minimal design changes to a new or retrofitted industrial softener system, up to 40% of salt costs can be saved as well as a reduction of water consumption. This is not only good for your bottom line, but it’s the right thing to do for the environment. 

Why Underground?

Many customers choose underground bulk salt brine maker systems because they don’t have the space above ground, or they don’t like the aesthetics of above ground bulk brine systems. The largest challenge of underground bulk brine systems is environmental risk. You can’t see them, and you can’t see if there is a failure.

Double Wall for Environmental Safety

All our systems employ a double walled containment system with leak detection. If there is a breach in the brine system, it will be contained in the second tank and there will be an alarm to notify staff to investigate, whereby nearly eliminating high environmental and legal costs of leaking thousands of gallons of brine into the soil.

Integration, Engineering and Innovation

As stated above, we are an engineering company, not a salt company.  Our focus is on implementing systems that seamlessly integrate into your industrial water softener system(s) or processes.   Our goal is to reduce your salt and water costs while simultaneously reducing your carbon footprint.  We can also integrate with your existing softener or process for an alarm to notify you if your softener or process has a potential failure so you can focus on your core business and not worry if your brine or softener system is working correctly.


  • Integration with building management system (BMS)
  • Brine Level
  • Salt Level
  • Leak Detection
  • Potential Softener Failure
  • Alarms

Automatic Brine Level Controls

Our Double Walled Underground Bulk Brine and Salt Tank Systems include automatic brine level controls, with emergency bypass, so you don’t have to worry about adding water to the system.

Efficient Pure Brine Collection

The bottom of the tank has a large distribution system that collects brine evenly across the entire tank using slotted heavy-duty PVC piping system. It filters particles, salt crystals and other insoluble materia from the saturated brine. If fine grade salt or granulated salt is used, quartz rock covers the distribution system to ensure only brine enters the distribution system leaving the sediment and salt crystals behind.

Down Flow Brine Making

Down flow brining ensures consistent, high quality brine saturation. As fresh water rises, the higher density salt water sinks. Dirt and sludge from the salt is captured at the bottom of the tank and needs to be removed periodically.


Our tough, double walled, fiberglass reinforced plastic shells are constructed to maximize the life of the system.

Uniform Distribution

In many underground bulk brine makers, inlet water is not distributed evenly. Results are often the formation of salt pillars in the tank These can break and damage the the system. We eliminate this with a header the length of the tank.

Dust Free Fast Salt Loading

Salt is loaded pneumatically and has an air vent and bag collection system that produces minimum dust emissions. The connection is a 4″ 304 stainless steel pipe, which is fitted with an aluminum camlock coupling and cap that adapts to a P/D salt truck hose connection. Further salt dust suppression can be added by injecting water during salt unloading, resulting in further minimization of dust emission.

Easy Clean Out

All Underground Bulk Brine Systems are fitted with a top-mounted, man way.  This port is used for periodic sludge clean-outs.  Every three years is standard but this depends on salt type and quantity of salt used.

Included Services:

  • Training of Staff
  • Collaboration with Engineers & Contractors
  • Engineering Drawings

Adders for Underground Bulk Brine Maker:

  • Engineering Site Visits and Consultation
  • Brine Day Tanks
  • Integration with Current Softener or Process
  • Flow Meter and Gauges
  • Salt Level Monitoring System
  • Pumps
  • Pressure switch
  • Integration with PLC or BMS
  • Conductivity meter
  • Remote Monitoring
  • Seismic Design
  • Food Grade Materials
  • NSF Grade Materials +1 888 56-WATER (569-2837)