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We've tried all sorts Bob and apart from an unsightly net (which works) the only thing that will keep Mr.H from cleaning out your entire pond is an electric fence: https://bradshawsdirect.co.uk/food-more ... ric-fence/9fingers":3lb6mohs said:View attachment 1
Scared it off 5 times now in the last three days. I think we only lost one fish but the others are in hiding and only taking food at night so difficult to say. Floating mesh protectors on order.
b'std thing!
Bob

As you know Bob, I'm no expert when it comes to electickery stuff, but the return path to earth is a 400mm long steel rod than you hammer into the ground with a big maul. The thing on the stick is the' box of tricks' and it ticks like a bomb so you know it's 'live':9fingers":ongrtx99 said:I suspect that electric fence type solutions won't work on our above ground brick built ponds as the return path will have too high resistance in dry weather.
I might do some measurements and experiment.
Bob

Tried those things Bob and they almost completely obliterate the fish and lilies; SWIMBO very unhappy bunny; likewise with a net. The Velda kit costs about as much as a tank of fuel for my motor so I'm sure that with a bit of creative ingenuity on your behalf you could easily get it to work and it could quite easily solve your problem with Mr or Mrs H - Rob9fingers":1clsgyah said:I will see how the floating grids work. Can't really see how they can fail but could make leaf skimming a PITA
Bob
Tried one of those Andy.....useless! - RobAndyp":1wpirmwx said:Bob have you seen the water jet deterrents? I've seen them solar powered but have no experience.
The mains pressure isn't the biggest problem. Unless you've got über soft water you'll find the internal gubbins of those things gums up with limescale in the blink of a heartbeat. Mine lasted about a week before it was summarily consigned to the wheely bin - Rob9fingers":aw3zpt5m said:Well I have now. Thanks. There are a few downsides such as getting mains pressure water to the location so possibly going to be a last resort method.
Bob
RogerS":15v0gn6h said:I usually go down the fishmongers. Why rear your own ? :lol:
...or SWIMBO in our case. Not a happy bunny :lol: - RobCabinetman":98y3t1mu said:I imagine the first thing to be blasted with the water jet would be me if I tried it ha ha.
Given where you live Adrian, I would have thought your water was very hard; ours certainly is here in Salisbury. Our water jet thingie was worse than useless and was summarily binned after a few days. Agree about depth of the pond though; Mr. H is a shallow water wader and apparently his little skinny legs give off some sort of scent in the water that attracts the fish. In the shallow river that runs just outside Wilton House (very grand if you've never been) there's a couple of White Egrets who regularly fish for their brekkie about 8.00am. Slightly smaller than a Grey Heron but very pleasant to see them in the water - RobAJB Temple":1n60gt7q said:We have used movement activated water jet for years. Never had a problem with scale but eventually sunlight kills them after a few years as they are mainly plastic.
The best deterrent though is depth. Our main Koi pond is vertical straight sided and 6 feet deep. Heron's won't land in very deep water.