You should pull up and remove weeds by hand as and when they appear. If it is a regular problem, you might need to reseal the paving. In extreme cases, the sub layer itself may need to be re-laid. You can use weed killer, however some paving can be discoloured by stronger weed killers.
Barmouth
Barmouth is a town and community in the county of Gwynedd, north-western Wales, resting on the estuary of the River Mawddach and also Cardigan Bay. Found in the Historic county of Merionethshire, the Welsh kind of the name is stemmed from "Aber" (tidewater) as well as the river's name, "Mawddach". The English type of the name is a corruption of the earlier Welsh kind 'Abermawdd'. The community is served by Barmouth train station. The community expanded around the shipbuilding industry, and also a lot more recently as a seaside resort. Remarkable structures consist of the middle ages Ty Gwyn tower house, the 19th century Ty Crwn roundhouse prison and St John's Church. William Wordsworth, a site visitor to Barmouth in the 19th century, defined it therefore: "With a fine sea view in front, the mountains behind, the wonderful estuary running 8 miles [13 km] inland, and also Cadair Idris within compass of a day's walk, Barmouth can always hold its very own versus any type of competitor." Dinas Oleu (Citadel of Light), which lies east of the town on the adjoining hill, was the first tract of land to be donated to the National Trust fund.
