I have been tinkering about with some bits and bobs I've got in boxes in the garage to see if I can create my own DIY CO2 Diffuser.
Small internal filter and pump fitted with a 3 way attachment, one for CO2 in, a control valve to reduce or increase the water pressure.
I could connect this up to the Dupla 500 CO2 Reactor or have the little pump and filter on it's own.
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