Trimat bulk washing powder - 5kg for $14.99 = $3/kg.
This is a great price for Trimat, it's usually $4/kg.
It scores well in the Choice detergent tests. Suitable for top and front loaders and has a sensitive version also.
If you can't find the Biozet deal posted a few days ago, then this is another one to look out for!
Is it an Ultra Concentrate ?
The pack seems to say 71 washes, that is nothing for 5kg.
Many 2kg packs do 66 washes or something.