Water proofing leaking well

[berisford]

I need to re waterproof a below ground small well which I think is losing water.The well is a concrete block walls built 30 years ago,the rendering has turned to mush over the years and needs to be re done.The water is fairly acidic, what type of cement and additive mix would anyone advise for acidic water storage. thanks

 

[Nukemall]

K A tanking slurry may do the job, but you would have to give them a call about the acid resistance. Have used it in multiple waterproofing applications here, and it is good stuff.

 

[Kevtherev]

As said a tanking slurry another option is a plastic/rubber bladder to fit inside they are available.