I'm still trying to solve the problem of weeds and moss growing in the
sand-gaps on our brick-paved drive. After advice here I decided
against spraying with a sealant, because of its appearance and its
temporary effect. I spent a day scraping out most of it and then,
after drying, sweeping in new sand.

Is there perhaps some chemical I can sweep in over the sand which will
kill at least the MOSS? (The weeds and grass are sparse, and
relatively easy to remove manually.)

--
Terry, West Sussex, UK