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Hi, what materials can I use to backfill the sink holes behind my retaining wall to rectify it? And can I purchase the materials from Bunnings?
Hello @99Neumann
Welcome to the Bunnings Workshop community. It's sensational to have you join us, and thanks for sharing your question about filling your sink holes.
Before I make any recommendations, can you please tell us what were the sink holes used for, and do they currently serve any purpose? What is currently filling that area of the retaining wall? Soil, pebbles, or sugarcane mulch? Once you provide us with more information, we'll be able to give you recommendations on what you can fill the hole with.
If you have any other questions we can help with, please let us know.
Eric
