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Air Diffusers & Manifolds are a very convenient, and necessary method of distributing air to where it is required, and manifolds also enable you to control the air supply.
Filters that have not had water circulating through them for the winter should be cleaned well before turning the pump back on this spring. Cleaning will remove toxins that can develop from waste breaking down in the filter in the absence of oxygen. Once your filter is up and running, seed it with beneficial bacteria.
