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The shower bases were free and that put me on the Aquaponics path the ibc' were 150$aud and 50$aud for a honey ibc and linseed oil ibc and if I bought again I would pay the extra 100$ for the honey one as the linseed oil was a bitch to clean out . Atm I have no filter on my sump pump as it is designed to handle small solids but does cause occasional blocking of the pipes.got the sump pump from Bunnings (Australian super hardware store) for 99$ (10000 litres/hour) and is powerful enough to add more growbeds in fact have already added a nutrient flow system last weekend