On 23/06/2019 01:12, Dave Liquorice wrote:


On concrete and oil spots (up to 6" across) I just liberally apply
washing up liquid work it in with a stiff brush and leave. The next
lot of rain washes it away, doesn't matter if it doesn't rain for a
day or three. In fact it's probably better if it can be left to
"work" for a day or so before it rains.

+1 with oil on concrete - neat washing up liquid and not necessarily
brushed in and wait for the next rain.





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