Piers Rodger

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Piers Rodger
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Gravitational Vortex Power Plant is Safe for Fish : TreeHugger

While trying to find a method for aerating water without energy input, Austrian engineer Franz Zotlöterer stumbled across the idea of a mini-power plant which is simple to construct and has a turbine efficiency of but which is safe for fish due to

Quinta do Vale is an off-grid permaculture project of 2.5ha in the mountains of Central Portugal. It’s an evolving demonstration site for many aspects of sustainable living, with a particular emphasis on off-grid infrastructure. It’s run by Wendy Howard.

outhouses peppers toilets plumbing, How to create a composting toilet system with a flush toilet, a worm-composting bin and a green filter bed. Nothing is wasted and the garden is given nutrient dense organic matter.

The Best Plants to Use in a Veggie Filter for your Pond

Get expert information about Aquatic plants used for filters and eight great reasons why to use them – Aquatic plants remove heavy metals and ammonia from the water.