Guides
Kit
Pump, filter and UV sized from the pond you have.
Filter sizeWhat size pond filter do I need?
Pressure filters and box filters, and why the fish rating on the box matters more than the biggest litre number.
Pump flowWhat size pond pump do I need?PondXpert's goldfish and koi flow rates, how head height cuts the real flow, and two Oase pumps with maker figures.
UV wattsWhat size pond UV clarifier do I need?How a UV clarifier clears green water, and the Hozelock Vorton wattage and flow bands to start from.