Stop Your Water Jacket Corrosion today! 100% Money back Guarantee

WaterDog Outboard Savers Thermostat Anode
WaterDog Outboard Savers Thermostat Anode
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100% MONEY BACK GUARANTEE

Your water jacket is corroding, we will completely stop it

You can use a multimeter to test the corrosive current in your motor by putting the negative lead of a multimeter on the Negative battery terminal and the  positive on the aluminum with water flowing, this is why 'scale' forms.


The ground system is bound to the water source, so you are measuring the current flowing into the water from the aluminum and you will get a negative reading with this setup.  This represents your aluminum dissolving.  


This is where the pits come from, electrons leaving the aluminum.


When you install the Thermostat Anode the current will flip polarity.


The reason it flips polarity is because the Thermostat Anode has enough surface area to fully saturate the cathodic ability of the thermostat, it can also provide electrons to the aluminum which is seen by a flip in polarity.


If you install the thermostat anode and it does not remove the current from your engine you get a full refund, we just need the anode back to test it ourselves.  The Anode has worked for every single engine tested and we know it will work for yours as well!  


Save your engine!

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Stop Risking Catastrophic Failure.

There is no question about this process, this is a testable repeatable scientific fact.  Even if you have never used a multimeter, you can easily see this current.


Every engine we have tested to date has stopped corroding and had the negative current removed from the block, yours will be no different.  


IF you don't think your engine is corroding you can easily see that it is with the multimeter and it will go away when you install the thermostat anode or you get your money back.  I personally guarantee it will remove the current and it will extend the life of your engine without a doubt.

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Hydrotalcite and Engine Performance

This yellow compound forms inside your engine as aluminum and magnesium atoms corrode and fall into the water positively charged.


The pits form as a result of these atoms being pulled towards the thermostat.  


You can see there is a negative current as a result of the electrons flowing out of the aluminum, and that attracts those positively charged corroded atoms.  opposites attract and they stick inside the engine water  journals. 


This builds up year after year restricting the water flow making your engine run hotter which causes the piston rings to expand more and scrape the cylinder walls, this slowly lowers its compression year after year but we stop it.  


Why let your engine lose performance every year? 


Once you install our Anode the current in the block is reversed.  The aluminum is gaining electrons instead of losing them.  This means the positive charged atoms from the zinc corroding do not stick to the engine. 


Our anode will preserve your motors performance throughout the years.  


There is no question if this substance is your motor, the only question is how much.  Visit our Facebook page to learn how to clean this out without chemicals.

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Technical Information

Thermostats Create Galvanic Cells

Water Flowing across the thermostat allows it to pull material out of your engine, causing the yellow 'scale' you see on your thermostat, in the housing.  


This is a spontaneous reaction that happens between dissimilar metals. 


The ions in the water provide a path for the electrons to flow from the aluminum towards the thermostat without direct contact.  


Our Thermostat Anode provides complete cathodic protection to your engine.  The proximity to the thermostat allows the anode to fully saturate it.

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Some Available Brands

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Yamaha

Thermostat Anodes

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Suzuki

Thermostat Anodes

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Honda

Thermostat Anodes

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Mercury

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Tohatsu

Nissan and Tohatsu

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Yanmar

Why is your engine filling with Hydrotalcite? Electrocoagulation

 The water flowing across the thermostat initiates the Galvanic Cell and is the bridge that allows the current to flow.  This creates a circuit in which the thermostat the cathode and your aluminum engine the anode, causing it to lose material.  The electrons flow from least noble to more noble metal and then back to the seawater, the loss of electrons causes atoms to fall out of the engine forming pits.  The atoms interact with minerals and form the scale that see you inside your engine, the yellow substance.  


The same current flowing through your engine causing this corrosion is what allows it to build up inside the motor.  Once you install the WaterDog Thermostat Anode, the current is removed from your block and the zinc that corrodes from our anode cannot stick inside your motor.


This means that the galvanic voltage is not only destroying your motor, its allowing the buildup inside to slowly restrict the water flow,  reducing the ability of it to cool your engine.  This is what robs you of compression over time, even with the best of maintenance, hose flushing does not have the volume to remove this.  


The solutions is easy!


Once you install a WaterDog Outboard Savers Thermostat Anode the corrosion stops and there is no more electricity to allow this coagulation.


Expected Lifespan

The life of the sleeve is expected to be 300 hours.  This picture was from a 175 hour degradation test where the pump failed.  At this point you can see the surface area was heavily corroded, it was still taking all the current.  


The sleeve was beginning to lose its ability to corrode as the pits become higher resistance spots from the oxidation forming on the zinc.  The rate at which it corrodes is also dependent on the ions in the water, there will be slight variation.  You can always check the current on your engine to see if your anode is still fully protecting your engine or needs replacement.


Take Your Engines Future Into Your Own Hands!

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Holes are Not Maintenance Related

You may think your engine is not corroding because you maintain it well but that is not correct.  The corrosion and resulting "scale" build-up is inherent to the design of the motor.


Any engine with a copper and Stainless steel thermostat will have interaction.  If there is a closed loop coolant system that ion content is minimal but not 0, testing is required to know for sure.  


Raw Water coolant systems will generally have more corrosion, salt water more than Freshwater.  It should be noted some fresh water sources have very high ion content, such as central Florida.


The only way to know for sure is to use a multi-meter and check it.


Raw Water systems are checked with the negative lead on the negative terminal and positive on the aluminum.  you will get a negative milliamp reading.


Closed Loop cooling systems are tested with the negative lead in the coolant and positive on the aluminum.  Here you will check for voltage, ideally be less than

than 0.3 volts, anything above 0.5 Volts is corroding.

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Roaming with Peace of Mind

  • Protect your engine from holes
  • Stop "scale" from forming
  • Maintain your engine performance
  • Your engine can survive as long as the hull
  • Improve your resale value 
  • More time on the water, less in the shop

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