Hot Water Anodes

Hot Water and Solar Hot Water Anode's

Solar Hot Water and Hot Water Repairs carry anode's suit all types of hot water and solar hot systems.

Magnesium anode's are commonly used in the Sunshine Coast region but this depends on the area and water quality. Anodes are steel core rods surrounded with either magnesium, aluminium or zinc and are installed on the top of hot water tanks during production to prevent rust and corrosion. They have ben used in hot water cylinders for decades and go a long way in avoiding heater damage and hefty replacement costs.

“sacrificial anode” is term used for the anode’s function; the rod will corrode in place of the heater’s exposed steel through a process called electrolysis, which is utilised whenever metal needs protection from water. This occurs when the two pieces of submerged metal react to a voltage.

During electrolysis, the less noble (more reactive) metals will corrode before the more noble (less reactive) metals. In the case of anodes and water heaters, magnesium, aluminium and zinc are less noble than steel, so they will corrode first, acting as a kind of shield for heater. Magnesium anodes are the most common and are used in manufacturer tanks. Aluminium anodes are generally used in hard water areas thanks to their higher hard water resistance; ideal for old tanks.

Depending on the quality of the anode and the volume of water involved, a typical rod will last 3½ to 5 years. Once fully corroded, the anode will cease to protect the heater, which will begin to deteriorate if not addressed. In time, a rusting heater will cause problems and require replacement more costly than a new anode. Regular anode replacement is strongly recommended, so get in touch with Anode Suppliers for a reliable anode supply.

Stainless steel tanks don't usually have anode's but in some of the solar hot water tanks used over the years like Everlast and Trinity used copper sensor ports. The copper sensor ports used where a weaker metal and act as anodes. Depending on the quality of copper used is to how long the sensor ports last before the copper pit's and starts to leak.

Below is a picture of a 5 year old sacrificial anode from a Rheem hot water system that was installed at Tewantin. 

4 year old Chromagen anode Caloundra


New Chromagen Anode



Everlast Sensor Ports the copper has been eaten away.



Solar Hot Water and Hot Water Repairs replace all types of anodes as part of our plumbing repairs anywhere from North Brisbane to Tewantin.

Buderim, Maroochydore, Alexandra Headland, Mooloolaba, Warana, Nambour, Caloundra, Montville, Landsborough, Coolum Beach, Mapleton, Maleny, Cooroy, Eumundi, Kawana, Noosaville , Aroona, Beerburrum, Bli Bli, Battery Hill, Bokarina, Caloundra West, Chevallum, Dicky Beach, Diddillibah, Doonan, Eudlo, Flaxton, Yandina, Forest Glen, Golden Beach, Glass House Mountains, Hunchy, Glenview, Kulangoor, Kunda Park, Cotton Tree, Kureelpa, Little Mountain, Marcoola, Meridan Plains, Maroochy River, Mooloolah Valley, Mount Coolum, Mountain Creek, Mudjimba, Ninderry, North Arm, Palmview, Sippy Downs, Tewantin, Twin Waters, Woombye