Hi Everyone
After some advice Ive had many a home with Efflorescence in brickwork and my latest I have laid a 2.2 metre slab next to my house for a driveway it buts right up to the house slab the only gap is the 5mm foam that sits beside. Its about 30 days old now and most of it still looks wet I have been living in the house for a year and before concrete no Efflorescence, now the concrete is in Efflorescence is everywhere. The concrete but up to approx. 1.5 bricks below weep holes and Efflorescence is shocking on the first 2 courses? Should I be worried and how can I remove Efflorescence effectively.