Broadback wrote:
I am in the process of pressure washing my patio, after that is finished
I will need to re-point. Having tried both dry mortar and wet I have
still managed to mark the slabs, though it has come off.

I favour something in between. Dry doesn't really work because even a
light spray of water tends to throw the powder all over the edges, and
only reaches the top layer. Just slightly damp allows you to pack it
firmly without any bleeding into the slab edges.

Is there a
reasonably easy and quick way of doing it and keeping the mortar off the
slabs? I wondered if something akin to an icing bag might work. Any tips
gratefully received.