it depends on the size and how many cracks there are but if it is just one hole you need to fix ther is a product called Quick creet I have used in the past with good sucess you can purchase it at local hardware stores.First pack the hole with fiberglass insulation then mix quickcreet with water to a morter like paste and trowel it into the hole.Be quick because it hardens in just a few minutes.If however there are a lot of crackes there is a 3 part sustem made buy a company called Sanitread you can get the address online just use the name and it will take you to the site.I have used this product on a few of my customers with great sucess.It isnt cheap but it is cheaper than replacing the cistern itself.I hope this helps you.
deoctor water pump, April 2007
