Cooling down the water in a 1000 liter container

[Joep Hogenhout]

Dear refrigeengineers,

A question.

I'm in lasershow business and when I have outdoor party's I use 1 or 2 1000 liter water containers to cool the lasersystem.

When I use 1 1000 liter container that water is in about 1 till 2 hour 30\40 degrees celsius when I drive the laser with DC 30A secondary current. The laser needs water with a maximum temperature of 30 degrees celsius, and 8.5 liters/min or 2.2 gal/min

Is there a way to cool the water down to about 10 degrees stable? Please keep in mind that the laser must be able to run the whole night.

If it is possible to cool down such containers, maybe it's also possible to look for a smaller solution as the 1 by 1 meter 1000 liter containers, because then I not need such big vehicle to move the containers. The cooling device must cool alot quicker when I use a smaller container instead of a 1000 liter one.

Thanks