Marine | Katadyn Technology | How to choose
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We are pleased to provide the following information to assist seafarers from around the world. However, neither Safety at Sea (Australasia)Pty Ltd nor its agents will have any responsibility or liability for any inaccuracies, falsehoods or errors in the information. For further information please see our disclaimer notice.

Marine

Katadyn is a leading manufacturer of efficient and convenient water desalination systems. On your voyage, fresh water is one of the few things you will absolutely need every single day. The freedom to make your own fresh water anytime will make a significant improvement to your cruising lifestyle. Katadyn marine products – compact, simple and durable – will satisfy the most demanding mariners.
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Katadyn Technology

Katadyn's patented Energy Recovery System
In the 1980s, the US Navy identified the need for a portable, hand-operated desalinator to provide emergency fresh water for sailors and downed pilots. We responded with an innovative solution that made it possible: The Energy Recovery System.

In order to remove dissolved salts from seawater with a reverse osmosis membrane, extremely high pressures must be generated. Traditionally, powerful motors and large amounts of energy were used to generate the necessary pressures. This was no problem for large vessels that had plenty of power and space to spare. Therefore, fresh water was a luxury that few sailors could afford.



The Katadyn Energy Recovery system takes advantage of stored energy in the high pressure reject water that is typically wasted. The pressurized reject water is recirculated to the back side of the piston to aid the next stroke. This energy is kept in the system, resulting in less work to achieve fresh water.

With this unique technology, we were able to develop the first, and only, manual desalinators in the world. The same technology that allowed efficient hand operation was adapted to higher output power units to give energy-efficient cruisers access to the "luxury" of fresh water on demand. Today, watermakers have almost become standard equipment, and Katadyn leads the way with the most energy efficient solutions.
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How To Choose
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There are 2 unique product classes that use our innovative Energy Recovery System:
1. Manual Survivor desalinators for emergency use
2. PowerSurvivors for daily water needs aboard

Survivors

Katadyn Survivor units have been saving lives and offering peace of mind for years. When you need it the most, your Katadyn Survivor will be there.
Katadyn offers two models of Survivor desalinators to provide emergency water when the unthinkable happens:
The Survivor-06 is designed for one to two person use in liferafts of a ditch bag.
The Survivor-35 is capable of providing emergency water for up to 6 people in a multi-person liferaft.

Both Katadyn Survivor models are trusted gear used by the US Navy, US Coast Guard, US Air Force, and many sailors around the globe. They are essential equipment for any offshore cruising vessel.


Power Survivors

Fresh water is one thing that is absolutely essential on a daily basis. Being able to produce it yourself is one step toward being truly independent. Another is having the confidence and understanding of how to get the most out of your equipment. We design our products to be reliable and easy to use and maintain.

Katadyn offers 3 models of DC powered watermakers:
PowerSurvivor 40E
PowerSurvivor 80E
PowerSurvivor 160E

What size is right for you?
The first step in choosing a watermaker is understanding your water needs. Sounds simple, but what people forget is the change in mentality from living in a house to spending time on a boat. Just like you take fewer clothes, fewer shoes, and shorten your menu, water needs decrease dramatically as well. In fact, the average daily usage on a cruising sailboat is between 1.5 and 3 gallons of water per person per day.

Liters/Day Water Budget by Lifestyle


Which model best fits your daily water needs?

We recommend choosing a model that can produce your calculated daily water needs in 2 to 4 hours of operation per day (minimum).

PowerSurvivor 40E
2 hours: 11.4 litre
4 hours: 22.8 litre

PowerSurvivor 80E
2 hours: 25.8 litre
4 hours 51.6 litre

PowerSurvivor 160E
2 hours: 50.8 litre
4 hours: 101.6 litre
Product Range (PDF 1.3Mb)