Main reason it rotted was because they installed it in direct contact with the concrete so water wicks up wood.
What to fix this once and for all?
Replace the wood with PVC lumber, or replace the rotted wood and leave it about 1/4 up off the slab and have it wrapped with coil stock.
Even the coil stock needs to be just off the slab so it does not buckle as that apron moves up and down with the seasons.
No way would I use pressure treated, it would take months to dry out enough to coat.
What to fix this once and for all?
Replace the wood with PVC lumber, or replace the rotted wood and leave it about 1/4 up off the slab and have it wrapped with coil stock.
Even the coil stock needs to be just off the slab so it does not buckle as that apron moves up and down with the seasons.
No way would I use pressure treated, it would take months to dry out enough to coat.