Hello All, So glad I found this forum. I need help with my ICF basement (conform). The house is 20 years old and the basement is finished. I don't know how the ICF walls were finished on the outside, but over the years I've been getting water in (small amounts) in my basement. I just has a french drain system installed yesterday and a sump pump. The installers showed me where there was sign that water is coming between some of the blocks, I think where the connectors are. I'm planning on ripping out all of the studs/drywall/insulation but am not sure what to do next, am hoping the collective experience of this group can give me some advice about moving forward...

I waited for a few days before replying to see if anyone else would jump in here. You have a bad situation. You indicated that this has been happening for some time. Most likely cause is related to a problem with the original installation.

Concrete does not adhere to plastic ties. If you used an ICF that has plastic studs exposed on the outside of the EPS panels, it's possible that water is penetrating around the studs and following the cross ties through the wall. That's your best case scenario.Re-waterproofing the outside of the wall will usually solve that.

The worst case is that the concrete was not properly consolidated, water has penetrated the EPS or the the seams between blocks and it's following the voids through the wall and into your basement. If it's just coming through at the base of the wall (not precisely what you described) it may be that significant amounts of shaved EPS had accumulated at the bottom of the cavity and the installer did not remove it before pumping concrete.

First thing you should think about is getting the water away from your house and re-waterproofing the wall.Every situation is different and your topography and soil types will come into play.Contact a local engineer and contractor Good luck.