I'm just pondering whether it is worth regrouting the joints between my crazy paving slabs. Haven't touched it since we moved in 3 years ago and it's beginning to age and flake a bit in places. I'm getting some weeds coming through plus some grass. I'm thinking it could go one of two ways - either the regrouting would stop the weeds, or the the weeds would simply push out the new grouting irrespective of how hard I try to kill them before I do the grouting. Any thoughts?
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