I'm in the process of planning a new koi pond build (re shaping & enlarging the existing one).
The plan is a square pond approx
12' x 12' square & 7' deep. 4' below ground & 3' above ground with
a 6' x 2' window on 2 sides. It will be constructed from 7N concrete blocks on their side over a reinforced concrete base with a 4" bottom drain for the filter system.
I quite like the idea of using on site fiberglassing instead of a liner so was wondering how easy would it be DIY for someone who has never worked with fiberglass and best place / costs of purchasing the stuff, or how much would I be looking at to have it done?
It won't be before this winter / spring