zarniwoop
hoopy frood
A bit of an exaggeration but...
Just walking across my back yard and one of the paving blocks gave way. I've lifted a few and found a hole around 10 cm across and 40 cm deep. Erosion? Rats? Seems odd that a cavity that size could develop over time and only suddenly make itself known - I'd expect more gradual sinking as I have in a few other places with the same blocks.
I'm hoping for some advice. Should I just fill it in, tamp it down and hope for the best (the blocks have been down for 23 years)? It is at least 1m away from the nearest drain.
I can see from the second view that the erosion continues (or starts) in a way that looks like the sand has just been washed away into the hole.
Just walking across my back yard and one of the paving blocks gave way. I've lifted a few and found a hole around 10 cm across and 40 cm deep. Erosion? Rats? Seems odd that a cavity that size could develop over time and only suddenly make itself known - I'd expect more gradual sinking as I have in a few other places with the same blocks.
I'm hoping for some advice. Should I just fill it in, tamp it down and hope for the best (the blocks have been down for 23 years)? It is at least 1m away from the nearest drain.
I can see from the second view that the erosion continues (or starts) in a way that looks like the sand has just been washed away into the hole.