too much water?

[Crystella]

I've got two herds of female piggies ( a group of three and a mum and daughter set). I'm getting concerned on how much water the mum and daughter group drink compared to the group of three. Especially as its the older sow, Ashy that seems to drink the most out of the two of them. They have a 600 ml bottle that I'm having to fill up in the morning and the evening as its normally running low. I've had her for at least nearly 3 yrs and if anything her water intake as not changed in all the time she's been with me. Advice anyone? is this normal?

 

[Siikibam]

Piggies will drink different amounts. Some more than others. I would have them all checked out if you’re worried. Does the bottle leak at all?

 

[alpacasqueak]

One of my pairs (Luigi and Aliona) drink at least 3 times what the other pair do in a day! A huge difference!
I’d definitely check the bottle as Siikibam says too, some piglets are good at playing with them and draining the things like my boar pair used to do!

 

[RosieLily]

My piggies are very different as well. Lily is quite normal but Rosie seems to have a terrible "drinking problem"