Hi guys im in the process of designing a tropical pond for my RTC but i would like to put a viewing window in it. I am building the pond out of concrete blocks and it will be rendered inside and then sealed with a paint on sealer. I would like to know the best way of fitting a window and sealing it and what would be best either plastic or glass? If anybody has done this before i would really appreciate some pics of how you did it and what you used.
Any info would be a great help.
Many thanks.
Any info would be a great help.
Many thanks.