Sometimes those who do injections talk homeowners into an injection repair when its not needed. Not needed meaning, the crack did NOT penetrate,go through to the exterior,some are super thin,crack goes into wall maybe 1/2-1" or less, and of course wall is 8-12" thick.
Another thing about these injections is they do not repair/seal other exterior openings just above the crack where water first-enters and so water can/will still enter on inside,usually up high on wall,right where the crack is seen http://www2.snapfish.com/slideshow/AlbumID=234807146/PictureID=5169003175/a=122238283_111847456/t_=122238283
Water can first-enter here…and through other gaps/crevices/openings above the top-of-crack and inside the basement it`ll look like the crack leaks up high (sometimes mid way) on wall inside basement.
Don`t mean to go on forever!! Trying to point out several scenarios/possibilities.
This is why i
ll often run a water-test,especially if its a shrinkage crack or any thin-hairline crack because, if crack doesnt penetrate to the outside then homeowner doesn
t need repair....if they were seeing water then the water is sometimes ONLY entering through gaps/openings above the wall, as seen in pics. Sure,some HOs will want something done w/crack anyways,ok,if thats what ya want fine but if i just ran water,LOTS of water on the outside of shrinkage crack etc and NO water enters,nary a drop. Just showed em the crack does not extend to outside…water is first entering through OTHER exterior opening(s).
Of course we
ll run water above the crack to prove this,like soaking/spraying the basement window or open joints etc.....and THEN water enters,then theyll see water on inside.
On the other hand,some teeny tiny lil hairline cracks do penetrate http://www2.snapfish.com/slideshow/AlbumID=248294896/PictureID=6008962966/a=122238283_111847456/t_=122238283
Ran water test to show homeowner AND my own azz that, yes, when i run water from ground-level down it does enter through the crack. Tells me crack penetrates to outside and needs to be waterproofed and/or are other openings,depends how one does the water test/where ya run water.
Sometimes INSTEAD of runnin
water test ill just dig out,dig down 6-12" and brush wall and see if crack penetrates to outside. And if grade is a lil low,you can see the TOP of wall outside then you may see the top of the crack(won`t need to dig/run water),may have to brush wall.
Same here,can barely see it but it does leak/allow water in,did water test http://www2.snapfish.com/slideshow/AlbumID=239227175/PictureID=5596980739/a=122238283_111847456/t_=122238283
Same house,see ‘other opening’ where water can enter. This and other outside gaps above the wall,around basement windows are what injections cannot seal and when ya don`t seal everything the homeowner will leak/see water on inside again.
t no lil crack.No way should any injection be attempted w/these but some bozo try. In 30 yrs when we
ve been called by HO who had an inside injection done and still leak, weve NEVER seen the epoxy/urethane penetrate through the crack to the outside…as many claim. http://www2.snapfish.com/slideshow/AlbumID=275864785/PictureID=6649211383/a=122238283_111847456/t_=122238283
About 50% of all injection re-leak,this is what we`ve seen throughout 30 years. Several reasons they re-leak, one is, crack widens a lil bit or quite a bit from lateral soil pressure or a porch footing/concrete slab etc
This is one example of why quite a few companies who do injections get call-backs/BBB customer complaints,are incompetent in diagnosing the actual problem and/or only care about getting a job.Example,Crack Team only does injections,had 23 customer complaints within 36 months and still has an unsatisfactory BBB record due to unanswered complaints. http://stlouis.bbb.org/WWWRoot/Report.aspx?site=142&bbb=0734&firm=310001164 Someone wants to use em go ahead,just trying to point out couple facts is all. Ok,sorry so long!