Water Pumps. If you are backpacking, trekking or on expedition and are taking your drinking water for dubious sources, you will probably want to treat the water before you drink it. We stock a range of water pumps, filters and microfilters from SweetWater, MSR and Platypus. These filter the water, and help to remove protozoa, bacteria, particulates, sediment, chemicals and other toxins, making it ready to drink. If you are using very low quality water and need to remove viruses, you may want to treat your filtered water using Water Purification Tablets. We also offer a range of spare parts and replacement filters for our water pumps, check out our range of Water Pump Spares.