Cats are bad at drinking. They evolved to take most of their water from prey, and a still bowl parked next to a food bowl is close to the least appealing arrangement you could offer one, which is part of why kidney and urinary trouble is so common in older cats. Moving water gets noticed. A fountain running all day tends to get a fussy cat drinking properly without anybody having to coax them.

This one holds three litres in a clear tower that sits above the bowl, so you can read the level at a glance instead of discovering it empty, and a household can be out for a night without worrying about it. Water falls into the bowl as a small waterfall, which draws attention and keeps the water oxygenated, and it filters continuously to pull hair and grit out. The controls are touch-sensitive and sit on the top of the tower.

• 3 litre (3000ml) clear reservoir tower
• Waterfall flow into the drinking bowl
• Continuous filtration for hair and debris
• Touch controls on the top of the unit
• Choice of cream or white
• Stainless steel and plastic bowl versions available

Worth knowing. These are not all the same machine. The bowl is stainless steel on some options and plastic on others, and steel wipes clean, holds odours less and is the safer bet for cats prone to chin acne, which is most often linked to plastic bowls.

Who it's for: Households with a cat who walks past their water bowl, and anyone who would rather see the level than guess at it.