Cooling System Flushing

[jord294 94]

hi guys

 

can anyone recommend a decent additive to flush the cooling system on my daily driver please?

 

i've flushed the system with just water but think i need something a bit special, as the coolant seems to still be a bit rusty coloured

 

thanks

[MerlinGTI 3]

I used this when I first got my GTI:

 

http://www.halfords.com/webapp/wcs/stores/...tegoryId_165750

 

I was happy with it Im told the single stage flush's are a waste of time. I gave the car an extra couple of plain water rince through's after using it.