Render setting time for a pond.

[Zen83237]

I have been modifying my koi pond to take a bottom drain. The pipe has been put through the wall and glued in and the bottom drain fitted and concreted in.This morning I put the final smooth rendered coat on the bottom. When should it be able to take my weight to fit dome on the drain and take immersion in water?

Kevin

[The Natural Philosopher]

48 hours in this weather.

[Zen83237]

ok, thanks