I've literally thrown the kitchen sink at it, well, more accurately a few products I found under the kitchen sink laugh2

Monty's expansion tank was filthy and well overdue a proper clean, if the mess that came out today is indicative of what others may find, I strongly recommend everyone checks the condition of their tank sick2

[Linked Image]

https://youtube.com/shorts/vbDBoVDDd0g?si=0dnBxUTAu0yBzBa0

To finish the job off my overnight Steradent treatment is well underway, I went all out with a strong mix of boiling water and 20 tablets, l'll refit the tank tomorrow and call it done thumbs