Waterproofing old reservoir

[Formatted]

We've got a gravity fed water system on half the farm, we pump up to a tank which then feeds the troughs. It hasn't been used in two years as previous owner has just cut grass. Pumped up a few times recently and the whole tank has emptied within a day with the troughs isolated. Is there a sensible way to re-water proof it? The concrete insides has become pretty soft.

 

[Ffermer Bach]

Could you SBR the walls (or maybe use a terolene applicator) then render with waterproofer in it? That would be my go to way of sorting it.

 

[PSQ]

Was the supply isolated at the troughs or the tank prior to it draining?
It might be wise to pressure test the pipework before looking at the tank, just to rule out a potential leak elsewhere.
And for the tank, perhaps a food grade 2 pack epoxy 'pool paint'. But be careful applying it in a confined space, dont do it alone, and have a safety plan and the correct PPE in place before you start.

 

[Nukemall]

Tanking slurry is perfect for this job, but agree you should absolutely rule out the pipework first.

Tanking Slurry 25Kg Grey

www.ukbuildsupplies.com

 

[Formatted]

Was the supply isolated at the troughs or the tank prior to it draining?

The first time no, the second time yes.

 

[Wesley]

What volume is it/do you need? Enduramaxx (or similar) tanks aren’t overly expensive for what they are. No worry of whether the fix has worked or not. Would depend how bad the leak is, or how big an area as to which will be most cost effective.

 

[AlCapone]

You say the concrete has gone soft so will any coating adhere properly

will the coating taint the water preventing the animals drinking

 

[Formatted]

I am thinking of flattening the tank and then putting in a new tank

 

[Pieces_of_Eight]

If it just a header because the cows drink faster than the water pressure can fill troughs, then wouldn't a black IBC with a ballcock work?

 

[Formatted]

then wouldn't a black IBC with a ballcock work?

Yes but filled on a timer via borehole so rather have a bigger tank we fill once in the evening that does the day.