The world’s first self-cleaning water trough has been launched on the UK equestrian market.

Water treatment specialists Aquamidas are so confident in their “Fresha Trough” that they are selling it with a two-year money-back guarantee.

The 250-litre trough is treated with an antimicrobial coating that has been proven in trials to prevent algae and microbes growing.

Aquamidas hopes the trough will help to keep horses healthier, as well as save time for their owners. Equine colic, in particular, is thought to be often caused by dead algae.

Aquamidas director David Dunkling explained that the Fresha Trough evolved from the Fresha Tank — released for aquariums some time ago.

The Fresha Trough’s antimicrobial coating comprises silver and active metals, which results in an “important decrease of all bacteria tested in contact with the product”.

Mr Dunkling, a former science and technology lecturer, explained: “The Fresha Tank only killed microbes which came into contact with the pre-treated discs, not those that grew on the sides of the trough.

“Since then we’ve experimented extensively and trialled our new Fresha Trough product, which we feel will fit with the particular needs of anyone caring for horses.”

The Aquamidas Fresha Trough will not only stay free from algae, but is double skinned for insulation. It costs £199 and comes with a money-back guarantee.

• For more information, and to buy, visit www.aquamidas.com