BOYU - SP-1300 Submersible Powerhead Pump (400 LPH) Biological soak beads in small quantity

soak beads in small quantity of water and test for residual chlorine with a chlorine test kit

will generally reduce the rigidity and we would recommend installing one of one or more cross braces

Gyre 300 series pumps include an extra set of bushings to help reduce downtime while cleaning and keep your pump operating at full capacity

and soft pad

BOYU - SP-1300 Submersible Powerhead Pump (400 LPH) Biological soak beads in small quantityThe motor is sealed in the body shell with resin for excellent waterproof performance, making it safe and reliable. Multi functional design can be used for pumping, for fountains and aeration oxygenation (3 in 1). SP 1300 Voltage: 230 115V 50 60Hz Power: 9 W Output: 400 litres hour Dimensions: 100x 55 x 146 mm Weight: 500 gm