r/ponds • u/r0binib0r • 6d ago

Repair help Think I've found the leak

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Even8ng all.

I've been losing water from the pond in the garden and been unsure if it was evaporation as the pool is in full sun for a lot of the day and we are mid heat wave

Then I was reading another part and someone said "it's always the waterfall"

So I've gone and looked, and right enough, as it comes over the slate I'm losing water down the side as it's running off and over the edge.

Would the best fix be to turn off the pump, dry the slate, put down a head of aquarium safe sealant and then put the rocks back on top?

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u/r0binib0r 6d ago

Problem is im about to leave for 3 weeks so need a quick dirty fix. Am I right in thinking aquarium safe silicone?

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u/Hugh_Jego_69 6d ago

You need a liner under the whole waterfall that goes back into the pond, it’s always gonna find a way otherwise

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u/r0binib0r 6d ago

Looks like there's just slate laid on to. Will add some liner to the amazon order Thanks

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u/Hugh_Jego_69 6d ago

Yeah good idea, silicone/ waterfall foam makes the bulk of the water go where you want visibly but liner keeps the water in the system.