How to remove or lessen marks on Silver Grey Pavers

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We are currently installing Silver Grey Pavers outdoors in our backyard. Some of the pavers have yellow marks and some have balck blobs. Can these be removed or can they be hidden by tinting the pavers?

Please do adviseSilver Grey Pavers

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Hi Mitchell

Many thanks for your message.

We are currently requesting in the first instance the pavers are replaced and then for the balance if any we will try your recomended products

Many thanks

Reagrds