04/09/2026
Honest question: were your radiators hot at the top and cold at the bottom last winter?
That's sludge, and no amount of bleeding fixes it. A power flush does, and September, while the heating's off, is exactly the month to do it.
We hire the machine from £70. New blog on the website covers the whole job, including how to check whether your system actually needs one.
https://www.olympustoolhire.co.uk/product/central-heating-power-flush/