NFPA 22

[sac32079]

I had a question about the ground being oiled prior to a water tank being filled. is this to stop the water from seeping into the ground? and where in 22 is this located?

Thanks

 

[cdafd]

Maybe 5.6.7.1.3 of the 2013 edition

And that section is fir steel gravity tanks suction tanks

Same section in the 2008