What we love about this pond is that it requires no connection to mains electric. This pond can be buried absolutely anywhere in the garden and is low maintenance. The solar pond pump has a lithium battery meaning it can run for up to 8 hours without sun plus a mains adaptor is included for times that the pump battery needs a boost of energy. The pond pump sits inside the filter drawing towards it dirt and debris but the dirt gets caught in the filter sponges without clogging the pump. Br the pond kit includes br pondxpert tench preformed pond br pondxpert solarshower 600 pond pump br pondxpert 9v mains adaptor br pondxpert ecofilter 4000 underwater filter br pondxpert zeolite filter media 5 litres br pondxpert black instant waterfall br 2m 6'6 x 10mm pond hose br 1 x 10mm clip br br note the preformed pond must be buried in ground. Br br saving based on buying pond kit items separately.