Changes

**Alternatively, a manufactured cushion fabric (geotextile) can be employed for this purpose.   

**Alternatively, a manufactured cushion fabric (geotextile) can be employed for this purpose.   

**The top surface of the membrane must also be protected from stone and gravel being used for inside the BMP. Again, sand or a cushion fabric may be used.  

**The top surface of the membrane must also be protected from stone and gravel being used for inside the BMP. Again, sand or a cushion fabric may be used.  

*When a pipe is used to provide drainage from the BMP cell, a 'pipe boot' should be sealed to both the pipe and the liner to prevent leaks.     

*When a pipe is used to provide drainage from the practice to a storm sewer, a 'pipe boot' or flange should be sealed to both the pipe and the liner to prevent leaks.     

[[Category:Materials]]

[[Category:Materials]]