The 3 things I learned when I had my foundation repaired that shocked me were the difference between helical

https://telegra.ph/3-Things-to-Know-Before-You-Encapsulate-Crawl-Space-and-Call-Foundations-Repair-Near-Me-05-05

The 3 things I learned when I had my foundation repaired that shocked me were the difference between helical and push piers, when each is used, and why depth beats count.