Yes, but used or reclaimed bricks can be more brittle, cracked, or uneven than new bricks, so they’re harder to cut cleanly by hand. For that reason, you should take extra care when scoring and striking, and expect a higher chance of breakage. If a brick feels especially fragile, score deeper before attempting to split it.

The difference between river rock and landscaping rocks is size, smoothness, and use. River rocks are smooth and flat, as if polished by water, and come in diameters between 1 and 8 inches. Landscape rock can vary in size from small pea gravel installations to car-sized boulders. However, landscaping and river rocks are interchangeable in many situations. River rock is best for pathways, walkways, garden bed mulch, water features, and planting accents, while small landscape rocks can serve as a walkway base, gravel playground areas, and filler between pavers.

Professionally done brick repointing can last 20 to 30 years, sometimes longer. However, the exact lifespan depends on several factors, including the quality of the mortar, the skill of the mason, and exposure to weather. If you live in an area with harsh weather or frequent freeze-thaw cycles, you may need to repoint more often. Repointing that is done as a DIY project may only last 10 to 15 years. It's time to repoint when you notice signs of mortar failure, such as crumbling or missing mortar, holes, or vines growing between the bricks. Regular inspections can help you catch these issues early.

In some cases, black stains on brick are caused by organic substances like algae and mold. However, it's more likely that the black spots you're noticing on your bricks come from carbon from vehicle exhaust or soot. Black stains can usually be removed by scrubbing the brick with a brush and masonry cleaner or power washing.