During last week we had discussions with Water Body Vendor Mr. Thomas,We discussed about water supply lines and drain lines for water bodies. For water body 1,2& 3 to provide gutter next to existing building edge would require drilling and re baring of reinforcement to the existing structure. To avoid re baring and proper laying of water supply and drain lines to water body we have proposed to increase the size of water body by 300mm . Sketch with 300mm extension is attached for your comments.
Regards,