I recently reset, with adhesive, some face bricks on a front porch stoop and needed to mortar the joints once things set up.

I decided to try a grout bag without much success. I was using Type S mortar mixed to a pretty runny consistency but had trouble feeding the mixture through the end. Anybody have any tips on how to use one?

Thanks, Bob.

I used one once or twice and got it to work reasonably well. It might be that the particular bag you are using has too small an opening. Get a bag from a tile supplier instead of a home center and that may solve the problem. Or maybe just cut the opening larger.

I watched a pro grout some brick pavers once and he used a smallish metal cup to pour the thinned mortar/grout. With care, that is an easy way to go and allows one to control the material.

Used grout bag on slate floor to minimize overall mess and was very happy with performance. Never tried vertical application.

Initially I was looking for large caulk tubes which would be similar to some pump systems on the internet.

I'd keep trying the bags, probalby just need to get consistancy, opening, and body english established.

IMO a grout bag is the wrong tool for the job. I have never used a grout bag but have pointed brick and stone joints.

This is the way to do it.

You might not need a mason's hawk, you could probably work off a steel float but I think you definitely need a pointing trowel.