diy chiller-need advice please

[konvikt]

hello i am new to this site..
i am planning to make a diy chiller ...
i will buy a cube fridge in few hours(hopefully second hand) ...
anyone interested to help me out throughout the project....
( i am not so familiar with the drilling part..it says that we should see for the coils before drilling..confused)...
mine is a 120 cm tank...
will a diy chiller help to keep the water temperature low...
kindly let me know...

[tawauboy]

you can refer to diy chiller thread by unclerobin.