I used some of that hydraulic cement to patch some cracks in a pre-cast concrete irrigation tank last year. Worked great!
It comes in little buckets, so no worries about a 50# bag.
(To be honest, the 'pre-cast irrigation tank' is something that most folks have buried underground and use for fluids other than water. Just another one of the 'creative' solutions the previous owners installed here)
Programmer - An organism that turns coffee into software.
If all your friends are exactly like you, What an un-interesting life it must be.