Tag Info

New answers tagged


The mortar, concrete, and plaster are not waterproof, but they don't have to be. The amount of water that will wick out will be minimal, and likely not even enough to be noticeable. The septic tank is not pressurized, so there's nothing (other than gravity) trying to force the "water" through the walls of the tank. For all intents and purposes, the tank ...


Probably not. I have a precast cement tank. It is not otherwise waterproofed/coated, etc. It's perfectly standard to use them like that. They don't spray water everywhere - it simply seeps, rather slowly, through the walls. Consider, if you will, what happens to water that you keep in the septic tank. It sits for a while, and then leaves by a pipe ...

Top 50 recent answers are included