Please click the link below to go to the Grouting Forum to view the multi-part Youtube.com videos depicting the "Straight In Drilling Technique".

Click---->>>> http://forum.leakproofonline.com/forum/index.php?topic=14.0

"This operation is one of many that injection contractors use to seal cracks in concrete walls effectively. The widely used "angle drilling technique" is not show in these videos but will be added at a future date."