
The paving is an ivory sandstone and the supplier has recommended their own product; Pavtuf Rust Remover (which I note is non-acidic) but it's terribly expensive at £33 per litre.
I will (resentfully) pay this if it does the job far better than other products.
Question: Does anyone have any experience with this? Alternatives?? (Lithofin Bero or Lithofin Rust-ex)

