Paving Stone cleaning

Discussion in 'Getting Started FAQ' started by Mr John Melvin, Apr 24, 2018.

  1. Mr John Melvin

    Mr John Melvin Active Member

    Hi Guys

    I have a paving stone area out the back which I tidied up
    new fence and its all looking fine
    I have tried to clean the area this morning.
    Its a mix of old and new slabs
    I have a good BIG Karcher so thats working fine.
    The new slabs are cleaning well.
    But older ones are not as well as I would like
    Is there any cleaner to drop down on them to help.
    Or is it just they are old and thats it

    Johnny M
  2. Pollowick

    Pollowick Well-Known Member

    Which head have you fitted to teh Karcher?

    I have a 50mm diameter head that produces a spinning jet of water and it really does get into the dirt layer.
  3. Mr John Melvin

    Mr John Melvin Active Member


    Well its the long usual probe.
    But the end bit as it was has i Pointed like spear looking end.
    The water output is a circle.
    Its maybe the stones are to old and have just took on this
    old look.
    But I thought I would ask.
    Thought there was some "magic" stuff I was missing

    Johnny M
  4. Dr Bodgit

    Dr Bodgit Well-Known Member

    You can get patio cleaner attachments like this:


    Also patio cleaner solution in a big red 5 gallon container from B&Q that you brush on first.
  5. Astramax

    Astramax Well-Known Member

    Buy 500g of Chlorine granules dilute enough to what you need, wet the area to be cleaned and using a paint brush paint the chlorine solution over the old slabs and leave for 30 minutes then power hose off. Could try a test area first to test the Chlorine strength.
  6. KIAB

    KIAB Well-Known Member

    Dilute Chlorine in a bucket,& use a soft broom to spread it,easier than a paint brush.
  7. KIAB

    KIAB Well-Known Member

    Hard on the knees & back, better to get missus to do it!:eek:
  8. Astramax

    Astramax Well-Known Member

    Pedantic! :rolleyes:

    John, you will have more control with a 2" or thereabouts paintbrush and will be able to work the solution well into the slabs.
  9. Astramax

    Astramax Well-Known Member

    You may find is easier to fix a suitable paint brush to a broom handle.:)
  10. KIAB

    KIAB Well-Known Member

    A broom or 7" Deck Scrub brush covers bigger area & quicker!:)
  11. facilities

    facilities Guest

    I may have a similar problem I have an Indian stone patio only laid about a year ago, and my weekend BBQ has produced one or two grease stains,

    I have a decent Katcher, but not keen on using it due to the power and would it cause damage to the stone, I have already had one or two flaky bits come loose over the past year
  12. KIAB

    KIAB Well-Known Member

    Indian sandstone can vary widely in quailty from superb to utter carp, all depends from which mine/quarry it came from.

    Marshalls give I think a 1 year warrenty on the indian sandstone they supply.
  13. rogerk101

    rogerk101 Well-Known Member

    Interesting thread, this ... some people pay to add the old, characterful look of 'established' paving areas, while others use fancy chemicals and equipment desperately trying to make them looks like they've just been laid. Thank goodness we're all different! :)
  14. Astramax

    Astramax Well-Known Member

    Yep sure are, go to your local Screwfix and get todays offer 3 for the price of 2 KIAB all paving cleaners but be quick offer ends at midnight.
  15. Jitender

    Jitender Well-Known Member

    Had a Karcher washer a few years ago, it came with tow heads a 1) vari lance hose and 2) dirt blaster, this is the high pressure one which fits your description.

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