The 3 things I learned when I had my foundation repaired that shocked me: push piers depend on house weight
https://blogfreely.net/calenenprj/basement-waterproofing-and-foundation-repair-3-things-to-know-first
The 3 things I learned when I had my foundation repaired that shocked me: push piers depend on house weight, light additions may need alternate systems, and brackets matter.