I have a child in the house. Just the one. He is six and a half, and as far as I can tell he rolls around in mud all day. I imagine that his lessons at school go something like this. Two plus two equals four? Well done. OK off you go outside and spend five minutes rolling about in mud.

Not having a utility room means my kitchen is piled high on a daily basis with clothes to be washed. In fact, right now I can't get to the back door as it is piled high with duvets and bedding waiting for their turn in the washing machine.

The chance to review two types of clothes detergents from one of the leading brands wasn't going to be missed. Do they work? Do they get stains out? Did they treat clothes kindly? That's pretty much the questions any parent wants to know.

So read on to find out just how our tester Theresa got on, and whether the answers to those questions are good - or bad. Theresa has a daughter who is six, and a husband, and lives a gloriously outdoor lifestyle right on the coast of southern England. She has been using both sets of Persil consistently over the past few weeks.

I know, I know, featuring washing powder does feel like the start of a slippery slope, but this deal is ace and I’ve just run out so it seemed like a good idea. Here we have one of ASDA’s rollback prices with this 4kg box of Ariel marked down from £12.84 to only £6. That’s pretty darn cheap.

• Click here to uncover the washing from ASDA

There’s not a lot I can say about Ariel biological wash really, except that it is, ahem, biological (which is good), and that you get 50 washes for your six quid (which is also good).I’ve never used Ariel before actually, I’ve become addicted to the new Infusions washing gel packs that I discovered on special the other day.

They smell so yummy and the fact that they’re pink gets my daughter all excited. However, seeing as I tend to always buy stuff for its discount properties I’m probably going to end up using Ariel for a while now. This price is a bit too good to not take advantage of and stock up a huge pile of supplies.

Thanks to Holly100 at HUKD!