Replacing Landscaping Tie Retaining Wall
I have a landscaping tie retaining wall that is approx. 42" high that I want to replace. I'm thinking of using the interlocking lanscaping blocks and am wondering if it's necessary to remove the old retaining wall ties(4"), or would it be OK to leave it and fill behind the new wall.
Approx. 3ft from a corner section of the wall is a hot tub that will add weight to the wall. Is there any need to add extra support to the new block wall?
One part of the new block retaining wall could either sit on a concrete slab, or on an earth base, is there a preferred option?
Thanks in advance for your help.