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How do I clean these bricks?

(9 Posts)
Deckthehallswithdesperation Wed 01-Jul-15 19:07:16

Is it possible to clean bricks? My neighbour has the same and has sanded his with a belt sander but I was under the impression that is bad because you 'deface' the brick. I seem to remember a little scrub with a brush and washing up liquid some years ago didn't achieve much. I wonder if a jet wash might do more harm than good? Is there anything I can do to safely lift the old grime?

LegoComplex Wed 01-Jul-15 19:08:44

DP (groundworker) said that brick acid would be the best thing smile

Sunnyshores Wed 01-Jul-15 19:18:08

Be really careful with the brick acid - but works a treat.

Deckthehallswithdesperation Wed 01-Jul-15 19:52:48

Will Google, never heard of it!

PigletJohn Thu 02-Jul-15 10:08:08

It dissolves cement, concrete and mortar. And skin and eyeballs. So only put it on the marks.

Have you tried a dry stiff nylon brush?

PigletJohn Thu 02-Jul-15 10:10:41


Looking at the marks, I think they're dirt, not mortar.

Is the house old enough to have lived through coal fires, factory chimneys, soot and pollution?

Deckthehallswithdesperation Thu 02-Jul-15 14:40:53

Yes dirt marks probably from pollution. A stiff scrubbing brush, washing up liquid & a bucket of water did nothing. Maybe I should sand like my neighbour? Don't want to dissolve the mortar.

PolterGoose Thu 02-Jul-15 15:11:23

Message withdrawn at poster's request.

PigletJohn Thu 02-Jul-15 15:14:40

sanding will damage the face of the bricks. Your look like a soft red, modern facing bricks will be damaged a lot more as they have a decorative layer on the front.

Try a stiff dry brush. Water may make dirt soak in.

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