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(DIY) buy at HD, apply leak seal from inside OR % D4 v3 J, ]4 ?' C4 `) `# H; t4 e/ D. V# g8 r
hire some professional company that armed with high pressure injection equipments to do the leak plug.
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should work, high pressure injection is the best and have lifetime warranty. . z, F; e, P( ]6 p; X( q } J g# i3 c1 T8 J3 l6 y3 M
hairline cracks not going all the way through wall is not unusual, 9 ~3 s4 F" {2 Y5 t, r1 w* [8 m# R: c+ p
big crack is rare, if possible, I rather back off