Freshwater depot

Enough water when you need it… 

As of 2018 FiiZK acquired Rantex. Thus, we can offer the markets strongest and best freshwater depot. With several patented solutions this is the depot of choice. Among the key fetures you will find: 

  • High quality ultrasonic welds 
  • Patented mounting clamp with strain relief 
  • Patented buoyancy tubes to ease installation 
  • Equipped with fully functional overflow tubes 
  • Stainless steel bottom plate for easier installation and operations 

The depot will be produced in the desired size after surveying the needs and specifications at each site. The design of our freshwater depot is calculated and quality assured by recognized professionals. 


  • Mounted on an existing cage. O=90-130m 
  • Can also be fitted on square cages 
  • Volume = 4000 10 000m³ 
  • PVC material, welded 
  • 100% watertight 
  • System for overflow to prevent overfilling 

FiiZK has delivered fresh water depots to: NRS Feøy, Mowi Scotland & Norway, Lerøy Norway and Hiddenfjord at the Faroe Islands. 


Why use a freshwater depot? 

Sea lice do not like fresh water and stay below the freshwater layer that spring flood creates in the fjords. Use of freshwater bathing treatments have given good results. The challenge has been capacity of well boats and access to sufficient amounts of fresh water. 

When it comes to the use of fresh water to treat fish against AGD it is at least as effective as hydrogen peroxide. The advantage of fresh water is that it is gentler for both the fish and the environment. 

With a freshwater depot you can save time and money. A well boat will use 1.5 hours to fill 1800 m³ from the depot. It is enough water in one O=120m depot to fill three wellboats with 1800 m³. The wellboat will spend 4-6 hours to fill directly from a freshwater source. 


Petter Haug Jenssen

Sales Manager Technical Tarpaulins

(+47) 951 59 944

Nicolas Santamarta

Sales Consultant Technical Tarpaulins

(+47) 915 41 665