Best Cleaner for Dirty Outdoor Porcelain tiles

[Persia]

Have recently gotten large black porcelain anthracite tiles installed in back garden.

We have a large German Sheperd also and as a result tiles have gotten dirty quite quickly.

Initially tried cleaning with power washer and detergent but all that did was leave power wash tracks all over the tiles, if anything it made it worse.

Asked the tiler what he uses to clean them and he recommended LTP Porcelain Floor Cleaner (indoor and outdoor use) @ €30 per litre.

Used as prescribed but did absolutely nothing.

Can anyone recommend a good cleaning agent thqt they have used and works effectively?

 

[aristotle]

Hypochlorite works well

 

[Persia]

Hypochlorite works well

Have you used it on porcelain tiles? All the advice on the Internet says it may damage the tiles.

 

[mathepac]

I've only ever heard of it used in a solution, 8i0 ml water:190ml hypochlorite. If you have hard water in your area, this may leave white stains on the black tiles.

 

[Leo]

Try one of the rotating patio heads for your power washer (example) with standard stone cleaner. I got that one but was sceptical as it seemed a little flimsy but the results were really good, same dirt removal as the jet but way faster.

 

[Persia]

Try one of the rotating patio heads for your power washer (example) with standard stone cleaner.

Thanks, I tried one already but just made circular scarring where it cleaned but didn't seem to lift the dirt on most of the tile...will try again with a stone cleaner.