Pondmaster® Hy-Drive 20235 Water Pump 7600 GPH. Pondmaster® Energy Saving Hy-Drive Water Pumps are rugged, powerful and efficient. The compact size makes it ideal to use in pond skimmers or anywhere that space is tight. Available in capacities up to 7600 GPH and are ideal for larger ponds and waterfalls. All pumps come with a full set of fittings and include a free pump bag for extra pump protection.