Im newish to stone floors so a few basic Qs please
1) Did a ceramic tile clean and grout seal last week. Two coats of Aquaseal seal applied by toothbrush to grout lines. Really tedious job. Any other options to apply seal to grout lines?
2) Also on same job I sold her a re-colour but her grout was a pale grey/cream colour and non of the five shades I had matched anywhere close. So just sealed it as above. Should I just stick to white or cream options with this service? Grey seems to hit or miss.
3) Different job. Two tiled shower floor trays. Non slip tile. Cleaned with HDuty Aquaseal cleaner. Dry. Apply white colour/seal with toothbrush. Needed two coats to get a really white finish. Dry and wipe of excess colour with a white pad. Nightmere. Took ages. In fact this job took 3 hours for two 1200x900 trays.

Any tips?
Thanks
Mark