This looks well thought out, especially the hollow centre to save on cement. If cement was not available could compacted gravel be an alternative? The steel clamp could have a U shaped base and top filled with gravel and compacted with finer aggregate. The plastic membrane would still be used.
This looks well thought out, especially the hollow centre to save on cement.
ReplyDeleteIf cement was not available could compacted gravel be an alternative? The steel clamp could have a U shaped base and top filled with gravel and compacted with finer aggregate. The plastic membrane would still be used.