{"schemaVersion":"ready-scan.discovery-surface.v1","id":"urn:readyscan:corpus:buyer-question:memorial-guardian-london-q140307501-answer-4dec080d0ad0455c418f","key":"buyer_question:memorial-guardian-london-q140307501-answer-4dec080d0ad0455c418f","kind":"buyer_question","slug":"memorial-guardian-london-q140307501-answer-4dec080d0ad0455c418f","canonicalUrl":"https://directory.readyscan.ai/corpus/buyer-question/memorial-guardian-london-q140307501-answer-4dec080d0ad0455c418f","machineUrl":"https://directory.readyscan.ai/discovery/corpus/buyer-question/memorial-guardian-london-q140307501-answer-4dec080d0ad0455c418f.json","datePublished":"2026-10-18","dateModified":"2026-10-18","materialFingerprint":"fnv1a64:e6346a4ace6058f1","membershipFingerprint":"fnv1a64:1685c56811293344","relatedEntitySlugs":["memorial-guardian-london-q140307501"],"relatedSurfaceKeys":["buyer_question:memorial-guardian-london-q140307501-answer-095b91904dd2882ea0a2","buyer_question:memorial-guardian-london-q140307501-answer-10f6e7a073c33f0ef80d","buyer_question:memorial-guardian-london-q140307501-answer-1fc3d2a54f22da564a57","buyer_question:memorial-guardian-london-q140307501-answer-2cdb50fa14812f290078","buyer_question:memorial-guardian-london-q140307501-answer-7908b12bc33a1032ae2b","buyer_question:memorial-guardian-london-q140307501-answer-7a55feb403d7dadf8b40","buyer_question:memorial-guardian-london-q140307501-answer-8e7e0f8dd715a9dab996","buyer_question:memorial-guardian-london-q140307501-answer-9315fba47b7115c7bb6e","buyer_question:memorial-guardian-london-q140307501-answer-95099b6309af9bf8e5c0","buyer_question:memorial-guardian-london-q140307501-answer-968bcdd0dd3eeec22459","buyer_question:memorial-guardian-london-q140307501-answer-9c7e6ccfc2e18ba5def0","buyer_question:memorial-guardian-london-q140307501-answer-a4437412485cae034194","buyer_question:memorial-guardian-london-q140307501-answer-b537deeddf50d2a23a7d","buyer_question:memorial-guardian-london-q140307501-answer-d038e452269c2bc29910","buyer_question:memorial-guardian-london-q140307501-answer-e0be4c7f7de00b27b633","evidence:memorial-guardian-london-q140307501","relationship:memorial-guardian-london-q140307501-products-and-services"],"sourceIds":["ready-scan-subjects"],"provenance":[{"snapshotId":"memorial-guardian-london-q140307501-content-8e4a0404de7416cd-snapshot","sourceId":"ready-scan-subjects","sourceRecordId":"Q140307501","sourceRevisionId":"Q140307501:content:c22a29c5f94c93ee","sourceContentHash":"fnv1a64:fe9c438c20c68664","recordRevisionId":"Q140307501:content:c22a29c5f94c93ee","recordContentHash":"fnv1a64:cabdd1c003609bfe","sourceCanonicalUrl":"https://memorialguardianlondon.co.uk/","sourceModifiedAt":"2026-10-18T16:06:57.988Z","observedOn":"2026-10-18","permission":{"basis":"public_information","evidenceUrl":"https://memorialguardianlondon.co.uk/"},"attributionUrl":"https://memorialguardianlondon.co.uk/"}],"quality":{"method":"same_kind_unique_trigram_floor","minimumUniqueTrigramRatio":0.3,"status":"passed"},"title":"Can I jet-wash a granite grave?","summary":"Cited source answers across 1 active corpus record.","question":"Can I jet-wash a granite grave?","answers":[{"entitySlug":"memorial-guardian-london-q140307501","entityName":"Memorial Guardian London","answer":"“Please don't. Even hard-wearing granite can lose its polish, lettering and any paint or gilding under a pressure washer, and the forced water drives moisture and salts into the stone and its joints. Granite is tough, but the jet is tougher, and the harm is often invisible until later.”","sourceUrls":["https://memorialguardianlondon.co.uk/blog/what-not-to-use-on-a-headstone/"]}]}