I've got my first two chains of bricks laid and mortared, and as I start my third I am worried about how careful I should be to fill the joints between two bricks on one chain and the layer above. I imagine that air pockets in the mortar are generally bad and could lead to blow-outs. Is this a danger? Should I be worried if there are any small air bubbles in my joints? I have absolutely no brick-laying experience, so any advice or reassurance will be appreciated.
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how careful should i be about filling gaps in mortar?