Hello!
In my portfolio, you can see that I have an ample experience of designing "Water tight basin/pool" for various household as well as industrial needs. You will need an expert in:
1. Civil construction
2. Coating [FRP/epoxy/waterproof paint]
3. Hydrostatic calculations
4. Structural analysis for material reduction/cost reduction
5. Detailed bill of material for cost approximation.
I am sure I can help you with all of these. Lets do it.
Thanks and regards,
Rajdeep Patel