You could measure the volume yourself by filling it with bucketfuls of water. Use a bucket that holds a known quantity (say, 2 gallons = a not particularly big bucket) and count how many bucketfuls it takes to fill it to the level you'll want. If you want to be really accurate you could measure the volume of the bucket by counting how many milk bottles full of water it takes to fill it to the level that you'll use when filling the bath .... :-)

Er I would but it has water init already! Thanks anyway

There are various pond websites with calculators on to find your volume.You just put in your measurements,well your ponds that is lol.

lol Aster and thanks

Well do it the other way round and measure it as you empty it - unless you are saving the water for something - water the garden with it!

Pauline - ask Noseypotter, I'm sure he knows how to do this. Obviously the volume is depth x width x length and you can convert that to gallons.....I dont know the conversion but I'm sure NP does...