Band-It Pellet Pump

It’s simplicity itself to use; just add your water and pellets, put the lid on, place the pump on top and pump. Once you’ve created a good vacuum, release the little rubber valve in the top, which allows the air to get back in. This forces the pellets to soak up the water and sink.

There’s everything you need here to create perfect pellets, including spare release seals, and the 1.25l capacity is plenty big enough.