sometimes on the EXTERIOR of block basement walls........

some blocks n mortar joints can deteriorate, disintegrate… how would installing ANY interior basement system and 92 sump pumps or applying Drylok etc repair anything like this n stop further water from entering? Not gonna happen. The blocks, joints n wall is going to get worse if one installs fraudulent trash on the inside

Block foundations with interior waterproofing :vomit::wha?::ack!:
Block foundations with structural reinforcement and exterior waterproofing. \:D/:wink:

how are you doing Marcel? Yes sir, you know it… see todays crawlspace videos (will post in couple minutes, sheesh, deteriorated bricks, open mortar joints etc)