I'm considering using hydraulic cement to stop my basement from leaking, We would like to finish it someday but want to make sure it won't leak later and cause more problems. Is it better to apply to the inside wall of the foundation or to dig around the house and apply to the outside? We don't have any obvious huge cracks that we've seen yet. Has anyone used hydraulic cement and have any tips/advice? Any help would be appreciated! Thanks!
Use whatever you want, do whatever you want to with it. You have to fix the UNDERLYING problem first. Why is your basement leaking? Answer that question and we can help you more. Poor drainage scheme? Busted gutters and downspouts? Spring? Broken DWV line? Busted water supply line? Well? Find out the damn problem before trying to fix the symptom. You will be lots happier.
There is nothing magic about hydraulic cement in terms of trying to stop a leak. It is really used as a no shrink cement for anchoring posts, anchor bolts, etc into concrete. You need to determine exactly where the water is coming from and deal with it. You may have a severe ground water problem, poor drainage, or other causes.
