Re: problem with concrete in basement
Sounds like it may be efflorescence. ( do a google search )
Originally Posted by JerryGove
If this started after the patio installation sounds like that's the cause.
Hard to say what's happening but I would guess the patio might be directing water toward the floor. There seems to be a change in drainage around that area allowing water to be forced into the floor from underneath pushing the chemicals up forming the efflorescence.
Just a thought.
"" an ounce of perception -- a pound of obscure "