Two sacrificial anodes, the one on the left is totally worn after 4 years and needs urgently to be replaced. The one on the right side is a brand new replacement anode. If you don't replace the anodes every 4-5 years, your storage hot water system will then corrode from the inside. When the unit is corroded, then the only solution is to install a complete new hot water system.
Water filters are becoming more common in today’s household. The widely used type is the under sink filter system where there is a small tap on top of the sink to draw clean filtered water, ready to drink. However there are complete in-house filter systems available, which then protect your whole house from calcium and harmful substances. You can then drink water from every tap, even the garden tap. And your hot water system is protected and lasts longer. Give me a call for a