How to build a mudpit for kids play?

[Kathy88]

Hey, 

I want to build a mudpit (no too muddy) in the backyard. I want it to be levelled with the soil and will put large rocks around the boarder. As the mudpit will be level, what type of sleepers or other non toxic material should I use for it? Haven't completed decided on the size but will be around 2mx1.5m.

I have some aqua boxes I bought intending to create a waterfall but don't think I will. Could I use those for underneath for drainage or it's not necessary? 

For the mud inside, I will need to use clean soil. I read loam is a bit less messy than other soil. I this true for Sydney weather? Do I fill the whole 2x1.5 with Loam? Any recommendations for brands I can use?

[JacobZ]

Hi @Kathy88,

You are correct that the Pillar 0.9 x 10m Natural Coco Weed Control Mat will work to separate the outside soil and still allow for drainage, but I'm more inclined to recommend GRUNT 1 x 10m Non Woven Geotextile Membrane Drain Mat Fabric for this application.

Either will help separate the outside soil from the inside soil, but I doubt anything will keep the bugs out. It is certainly worth adding, but I would still expect bugs to get in.

They can't act as a retaining wall in the same way timber sleepers will, but this Rola Pak 200mm x 2.8m (approx) Treated Pine Ezy Edge Garden Edging could be a good option that can be shaped more organically than sleepers.

Let me know what you think and if you have any further questions, please don't hesitate to ask.

Jacob