Old Computers and Moisture don't mix fairly OT 5

topposting so I cut most of it :

snip

Bzzt.

From what I read below, this seems to be the problem right here.

snip rest of toppost

Seen them. Yes, you have a problem; but you seem to be acting in time.

These are sensible emergency measures, but not a solution. You need to establish a proper membrane througout the premises.

This is a solution. The stuff you have chosen look very good, just be sure the cement you apply it to is properly cleaned first; and YOU MUST APPLY IT TO THE ENTIRE STRUCTURE.

Otherwise the water will just creep around the membrane.

It also needs some surface protection; e.g. a small layer of cement, tiles, strong linoleum, astroturf or whatever. This is just so some stuff don't just puncture the membrane again. A good-sized DEC cabinet is prone to do this.

You may want to look for cheaper solutions. You just need to establish a membrane, and since you need to do surface protection you may as well use some cheaper stuff, like glued, welded plastic membranes and a layer of cement.

-- mrr

WHo have designed, operated or rescued around 100 computer room facilities in my career.