How can you stay safe in a house fire?
alarms have been a standard item since the mk3 (i should know, i've had 6 of them)
There should be foly on the sides '.. The concrete is just to make the pond's shape, then you need a cotton wool cover on it to protect the foly Then you need a strong foly which can take the pressure of the water I'd say, empty the pond and just built a new one because you ruined this one A proper koi pond costs 15.000$ if you do everything your own
