Waterdrop Refurbished G3 RO System

Yes, we only sell machines that have undergone rigorous quality and sanitation checks, and repackaging processes to ensure they function as new. Additionally, all filter elements have been replaced with new ones, giving you the peace of mind to use them with confidence.

Yes, we provide a 1-year warranty with each refurbished RO system that we sell, giving customers peace of mind and protection against any unforeseen issues.

We recommend regular maintenance and cleaning of your used or refurbished RO machine to ensure optimal performance. We also provide support and guidance on maintaining your machine, including filter changes and routine checks.

No, you will not need to replace the filter elements as all filter elements have already been replaced with new ones during our thorough cleaning and servicing process. You can use the RO system with confidence, knowing that it has been refurbished to meet our high standards and is ready for use. If you have any further questions or concerns, our team is always available to provide support and guidance.

Reverse osmosis (RO) is a water purification process that uses a partially permeable membrane to filter out impurities from drinking water. In reverse osmosis, an applied pressure is used to overcome osmotic pressure, a colligative property that is driven by chemical potential differences of the solvent, a thermodynamic parameter. The result is that the solute is retained on the pressurized side of the membrane and the pure water is allowed to pass to the other side. To be "selective", this membrane should not allow large molecules or ions through the pores, but should allow filtered clean water to pass freely.

The life of the filter element of our machine depends on the two indexes of service time and pure water after filtration. As long as one of them reaches the upper limit, it needs to be replaced. The first stage front compound filter element is recommended to last for 6 months or to filter 550 gallons of pure water. The second stage RO element is recommended to last 24 months or to filter 2200 gallons of pure water. The third stage rear carbon rod filter is recommended to last 12 months or to filter 1,100 gallons of pure water. Due to the different water quality and water consumption of each house, the actual replacement time of the filter element is not consistent. The actual use situation shall prevail. When the filter element needs to be replaced, the prompt light on the machine and the lamp ring of the faucet will prompt through the color change. You can replace it according to the prompt, which is very convenient.