Originally Posted By: jakewash
If the plywood shreds easily I am thinking it should be replaced as well.


Good idea, if I didn't have to rip out all of the kitchen cabinets first.

This leveler I'm using, although not easy to apply, is made for this purpose and seals the plywood up good and tight.

https://docs.google.com/spreadsheet/ccc?...amp;usp=sharing