Hi guys, Been talking to various people about ponds, springs etc. If I keep the pond as it is I can put Koi in it but won't be able to see them as they will cloud the water up quickly. I would need to put a filter on it, but it will clog up with clay etc quickly, so was told to put nothing in it. The pond has now completely filled back up again, but it never overflows (touch wood), this must be to do with the pressure equalising, think its called table-ing. So todays question is if I were to put a liner in the pond, would the weight of the water pushing down equal the pressure and stop further water leaking aorund the liner? Cheers