The Oppo BDP-203 is an excellent high-end 4K Blu-ray disc player, but image quality improvements over cheaper players are tough to spot. Read full review Autoplay: ON Autoplay: OFF
Efflorescence is the stubborn problem that has caused confusion and trouble for masonry since the first time it appeared thousands of years ago on ancient masonry walls. Efflorescence is normally the white, powdery scum that can appear on masonry walls after construction but can also be brown green or yellow, depending on the type of salts.
Efflorescence forms as moisture passes through the porous concrete of your basement walls. As the moisture evaporates into the air, it leaves these minerals behind. There are products on the market that can be used to eliminate efflorescence, but all you'd really need is some vinegar, a stiff scrub brush, and some rigorous scrubbing.