Coypu Damage – Bentonite

Since we have been getting visitations from our exiled South American friend our pond has sprung something of a leak. This leak is over in “plug hole corner” and very near Le Jaudy. There is a clear run up from the river and the little blighter leaves us a few fresh turds from time to time, just to say hi.  There is a new grazed patch of grass near the green house and the tell-tale signs of severed nascent water lilies, suggest some root munching.

Probing the bank near where it gets into the pond there are two little tunnels. The diameter is too small for it when I last set eyes on. But it may have dug them when it was younger. One of these is close to the leak.

I have been reading up and the best way to seal a leak is to drain the pond and do it dry. Else it is best to use a heavy loading of bentonite clay at 1 pound per square foot of pond surface.  This is way too expensive.

So, could we try a middle way “hack”. Maybe. Dry bentonite swells to about three times its volume when wet.

It is easy to source bentonite by the tonne, less easy by the 25kg bag. What else contains bentonite?

Cat litter…

Off to Bricomarché this morning and we scored 16 litres of cat litter.

We have partially filled the tunnels with stones from the river. And in the one near the leak, we inserted 2litres of bentonite in a 3-litre plastic bag. This is under the water level. We then punctured the plastic bag to allow it to fill with water and expand. We closed off the tunnel with stones.

On the outside we covered the leak with the rest of the bentonite / cat litter and two wheelbarrows of earth.

Fingers crossed the leak will be sealed or at least slowed down…

I’ll let you know if this “hack” work…

We have spent the rest of the afternoon renewing the wire deterrent fences in front of the pond banks.

Nice to be out in the sun, in a T-shirt and listening to the river…

Over twenty degrees…

hmnn… nice