I have an old Dairy farm in Wisconsin. In the cellar are two old concrete tanks used for cooling milk jugs using ground water. The tanks are about the size of large Bathtubs and we draw water for Bathroom use.
The tanks have developed some cracks over the years and were sealed with hydraulic cement.
I would like to drain and reline the tanks and am not sure of the best approach. Ideas? Where can I find resources.Thank you for your time.

Tess58,
you want to reline as in,... slurry or seal?

Now that I have resolved signin issues. I would like to know what is best.It appears a slurry was used in the past. There is water involved and I would like to know how that would stand up.