New video installing HYDROBLOK, the better shower system. You'll love it!
⭐   • How to build a curbless shower with a...  

If you need the type of drain that I used go to: https://www.amazon.com/gp/product/B00... (Affiliate)

A combination of material aging and the lack of maintenance by the owners resulted on the deterioration of the support beams and all the materials used over them. Take these sample and work on your project with caution. I hope I was able to answer some of your concerns.