Waterproofing a concrete box?
 

If you wanted to waterproof a concrete box, could you just cover it with fiberglass resin? It would take a lot of resin, but I like that resin seems to adhear to itself, where epoxy tends to de-laminate.

What about using a pond liner?

blue skin

Hydroban

what is the purpose and use of the waterproof concrete box? will there be any openings in the box? will it be installed above ground or underground? need more information ....

You can buy nursery/plant liners, with or without holes, in just about any size and shape you can imagine. They are sold in different mil thicknesses though so be careful not to get one too flimsy.

Is this, by chance, a basement level cast in place tub?

Yup same guy, he just doesn't take advice very well.

He does seem intent though. We cannot make them listen. Can you imagine what this concrete basement soak tub is going to look and smell like when everybody suds up and spills their beverages, scewered shrimp and all into the water. No systems for recycling the water through filters or at least copper plates?

Call me a negative person as some on the other thread did. I will say what I did there again though. You cannot plunk anything you plan to splash around in, an especially in your basement without thinking through---just to start---ways to get water in and out of it legally.

Call a pool or spa design team in for this. I find this self-poured concrete tub without reinforced walls to be one of the most dumb suggestions ever floated on this site. The OP will stick with us until he gets affirmation I am guessing. :furious:

Im still waiting on PICS :thumbup: