Yes, mud injection can be used to repair a leak in a slab of foundation. Often it is the cheapest fix available.
16inches above grade
The top of a foundation at grade. Foundation walls should be a minimum of 8 inches ABOVE grade.
Full basement is the grade of concrete that is laid for foundation.
Elementary ballet is a grade in ballet, It ranges from Pre-primary, primary, grade 1 , Grade 2, Grade 3, Grade 4, Grade 5. They are the Junior years. Then it goes Pre-Elementary/Intermediate foundation, Elementary/Intermediate, Advanced Foundation, Advanced Foundation 1, Advanced Foundation 2. These are the senior years.
A grade C (if your in England)
No you don't have to complete Grade 5 ballet to do Intermediate Foundation, you don't even have to be in Grade 5. Hope this helps!
It really all depends on the size of your crack. If you have a major crack, you need to call in an expert. If you have a minor crack you can go online and purchase DIY professional grade foundation wall and floor crack repair kits. Once you have fixed the crack you want to seal the floor and wall to strengthen the concrete and prevent future cracks.
In RAD, you start wearing pointe shoes in Intermediate Foundation.
Below.
B
The ballet grades are (in order from low to high) - Pre-Syllabus - Pre-School - Pre-Primary - Primary - Grade 1 - Grade 2 - Grade 3 - Grade 4 - Grade 5 - Grade 6 - Grade 7 - Intermediate-Foundation - Intermediate - Advanced 1 - Advanced 2 (after grade 5, you can skip straight to Intermediate-Foundation, if ready for pointe)
If you are interested in professional grade equipment you can buy them from a place that sells whole sale. By purchasing whole sale equipment you will save tons of money.