Plumbdog Plumbing Services


Hot Water System Maintenance – Replacing Sacrificial Anodes & Tank Flush

  • Servicing your hot water system should be a routine exercise like servicing your car
  • We were called out for a major service. Check out what happens when we do a tank flush.
  • Learn what needs to be done when a plumber services your hot water system
  • Check out more of our VLOGs & don’t forget to like and subscribe!


In today’s video, one of our top dogs, Richard, is on the mission to revive a hot water system by replacing its eroded anodes. Most people underestimate the process of maintaining their hot water systems. There’s a general assumption that replacing anodes once every 2-3 years will suffice to maintain the quality and life of the hot water system, but this is an oversimplification and doesn’t provide ideal results.

The Tank Flush

To our Plumbdogs, hot water maintenance alone is not simply replacing sacrificial anodes. Flushing the tank to remove the anode sediment at the bottom of the tank means that you are bathing in quality water and prevents blocking your tap filters around the house.

The anodes work as a life support system for the tanks. They are made of magnesium, which reacts with the impurities to save the tank from any infection that might cause harm or depletion. The sacrifice that these anodes make result in their periodic reduction, which at the end settles at the bottom of the tank in the form of powdered magnesium.

To maintain the tank’s smooth functioning, it is vital to timely replace these anodes as and when they wear off. The anodes work as a shield to preserve the tank’s quality by enduring the destruction of the impurities.

Over the period, the impurities keep on scoring at the base of the container, making it a severe cause of concern. With time these deposits become dangerous as they attack the bottom part of the tank and become a cause of corrosion.

Replacing Sacrificial Anodes

Plumbdog Rich shows us what’s involved with replacing the worn-out anodes from the tank with the new ones to keep the tank’s condition intact.

He removes the anodes from the top of the container and shows us how the old anodes have been exhausted and totally broken down. All of the magnesium has broken down rod over time and the residue remains sitting in the bottom of the tank.

In the next step, Richard performs a tank flush to get the flush out the residue. Check out how the entire floor is covered anode sediment. For those who have not done a proper service or have called in those who simply replace the anode and move on to the next job, after watching the video you can easily see the damage that could be caused if more sediment built up to the hot water system and the quality of the water to your home.

Thanks for watching and don’t forget to like the video, share, and follow our YouTube channel.

Related Vlogs

Hot Water System - Do you know where your water meter is?

Hot Water System - Do you know where your water meter is?

Hi there, Rhyse from Plumbdog! I’m just going to put a small video together and have a little chat about water meters and some of the unnecessary difficulties some plumbers…
Hot Water Storage - Electric Storage under sized Power Supply - Nedlands

Hot Water Storage - Electric Storage under sized Power Supply - Nedlands

Hot water tripping your main? Have a problem with power supply? Then watch this hot water storage video to save yourself some time and money!
Hot Water System - Too Hot & too Cold - West Perth

Hot Water System - Too Hot & too Cold - West Perth

Is your hot water system going hot and cold? Are you wondering if you have a hot water system fault? Watch this video & you might be able to save…

Make a Booking

Supply & Install Enquiry

Apply for a position form

Upload documents (CV and cover letter)

Contact Us

Enquire Now