Waterdrop G2P600 Reverse Osmosis System TDS Reduction 7 Stage Water Filtration NSF ANSI 372 Certified 600 GPD Tankless

At the 2 year mark, I thought I would write a quick review. Installation was easy if you are a little handy and have a few basic tools. It has never leaked. It has worked absolutely flawlessly for 2 years. I had to change the sediment prefilter at 12 months, and again at 24 months. I had to change the Reverse Osmosis filter at 24 months. This was all in the time frame I expected for moderate water use for 2 adults. The water tastes excellent, and the water flow has always been good. Very happy with this unit (G2P600). Read more

6 month review: Water tastes similar to vending machines and water stores. I have consistently measured filtered water TDS at 8-12 ppm. The discarded water measures TDS anywhere between 300-600 and it tastes like armpit sweat, so it is definitely working on both instrument analysis as well as taste test. I collect discarded water for watering house/patio plants, but it's nice that discard volume is low (1:1). It's installed in the garage sink and use it mainly for filling 5 gallon jugs (with food grade silicone tubing attached to the faucet into jugs) that are also stored in the garage. It takes around 5-7 minutes to fill 5 gallons. I appreciate the clean design as the main unit is installed under a utility sink where it is easily visible. Read more

The Waterdrop G2P600 is an excellent reverse osmosis system (RO). We previously had a big tank RO but after a gallon or two it would slow down until there was just a trickle from the faucet. Then we would have to wait for the tank to refill. Having a continuous flow RO is a huge plus. And it takes up less than half the space as our old RO & tank. I had some concerns about the noise of the pump but honestly we keep it under the sink and when the doors are closed it's barely noticeable. However that we had one minor problem. There is a pause when you turn the faucet on. That momentary pause did not play well with our refrigerator ice maker. It made some loud noises. So I highly recommend if you are going to connect this RO to the refrigerator you buy the tank as well. (Waterdrop PMT Small Water Pressure Tank.) And then bleed a lot of water through the fridge to remove any potential bubbles in the line. Now there's no momentary lapse and the ice maker is quiet once again. You can see just how small the tank is compared to the RO in the attached picture. It was a very easy install and made a huge difference. Here's my water measurements in Total Dissolved Solids (TDS) measured in parts per million using the Craft911 water tester: 249 tds from the hose 324 tds from the sink (from a water softener) 34 tds from our old RO 12 tds from the G2P600 RO That's quite an improvement. Some day I'll have our water tested just to see what's actually in there and what the G2P600 is removing from the source. So I highly recommend the G2P600 and tank. This is proving to be one of my best Amazon purchases. Read more

It was easy to install. I had a 1.5" hole in my granite top from my previous RO system. So I reduced the hole by placing a piece of styrofoam with two metal washers siliconed to the ends. This helped from having the faucet to move around in a larger hole. I really prayed and ask God to send me some plumbing angels. It works great! I was worried about leaking connections, but everything sealed tight! I purged the filters for thirty minutes w. water and used it to water my plants. Thank you God for helping me and the plumbing angels! After 30 minutes, the water ran crystal clear and I immediately could taste the difference in the water quality-cool, refreshing and no after taste! Read more

There is lots to like about this RO unit for under the kitchen sink beginning with its compact, thin size. It fits nicely and still provides lots of room for storage. The biggest plus is the ease of filter positioning for replacement. 2 easy to remove filters that take all of a nano-second to swap out when the time comes. The faucet set that comes with the unit is also vey nice. Small, sleek and easy to operate. My water pressure is very good so I have good flow for the dog's drinking water. The water filtration also appears to be on point. It is virtually tasteless and has no odor vs our tap water which heavily smells of chlorine. Another big plus. The 4-star vs 5-star rating is the need for an electrical outlet to operate the unit. Most are without that need. I hired an electrician to place a plug specifically for this operation which is overhead. That said, once turned on, it is very quiet and the display is very straightforward. I followed the instructions to let the water run a solid 30 minutes prior to usage and that was about it for start up. Once the filters are needing replacement the visual display will flash alerting the need to swap out filters. The price was very economical, the unit appears to do what it is intended. If it were without the electrical component, it would have been a 5-star. QUESTION: What are the replacement filter order numbers?? They do not make it clear how to order the correct filters and I would like to have them on hand. Read more