English: A constantly submerged lavafilter, used frequently in agricultural companies to allow a constant and pure water source for irrigation. The lavastone mass with waterpurifying-plants (Iris pseudacorus) is correctly dimensioned at 1/4th of the water mass.
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2008-03-01 15:04 KVDP 2720×1964× (378552 bytes) {{Information |Description=A constantly submerged lavafilter, used frequently in agricultural companies to allow a constant and pure water source for irrigation. The lavastone mass with waterpurifying-plants (Iris pseudacorus) is correctly dimensioned at
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