Alkaline Mineral pH+ 700G Tankless RO System - Fast Pure Water

In this review of the Waterdrop G5P700A, the bottom line is straightforward: this tankless reverse osmosis system is for households that want very high-purity water with faster flow and a compact under-sink footprint. The reviewer found the combination of a 0.0001m RO membrane and alkaline mineralization to be the single biggest reason to buy, because it both removes microscopic contaminants and restores beneficial ions. Installation is approachable for a competent DIYer, the matte black unit saves space, and everyday water taste and clarity improve noticeably.

Key Features

• 8-Stage Precise Filtration: A multi-stage filtration train tested by SGS reduces PFOA, PFOS, chlorine, bad taste and odor, lead, fluoride and other heavy metals for safer drinking water.
• 0.0001m RO Membrane: The very fine membrane removes particles larger than 0.0001m for lab-level contaminant reduction while protecting water clarity.
• Alkaline Mineralization: After RO, essential minerals like Ca2+, Mg2+, Na+ and K+ are reintroduced to improve taste and maintain balanced pH.
• Tankless Compact Design: The slim, tankless form frees up to 70% of under-sink space compared with traditional tanks, making it ideal for smaller cabinets.
• 700GPD High-Speed Flow: A robust 700 gallons per day capacity delivers ready water quickly, filling a small cup in seconds for busy kitchens.
• Smart LED Faucet: The included faucet gives a simple status indicator while adding a modern finish to the sink area.

Who It's For

This system is best for families and users who prioritize high contaminant removal and consistent, fast output without a bulky tank, and who want added minerals returned to their water for taste. It suits homeowners with some DIY skill who can handle under-sink plumbing changes and faucet installation that may require drilling a hole in the countertop.

Those who should look elsewhere include buyers who must avoid any possibility of faucet drilling or who prefer a simple pitcher or countertop filter; also, people in rental units where modifications are restricted may find a different solution more appropriate.

Pros & Cons

Pros

• Very high filtration performance that reduces a wide range of contaminants while restoring beneficial minerals.
• Tankless design saves a significant amount of under-sink space and presents a sleek, modern appearance.
• High-speed 700GPD flow gives near-instant access to purified water for cooking and drinking.
• Most users report improved water taste and reliable function after installation.

Cons

• Faucet installation requires drilling holes in the countertop, which may be undesirable for some installations.
• A few customers have reported isolated leakage issues, so careful installation and periodic checks are advised.

Specifications

Filtration stages	8-stage precise filtration
RO membrane rating	0.0001m
Added minerals	Alkaline mineralization (Ca2+, Mg2+, Na+, K+)
Design	Tankless compact under-sink
Capacity	700 gallons per day (700GPD)
Pure to drain ratio	21:1
Faucet	Smart LED faucet (requires drilling)

Our Verdict

The Waterdrop G5P700A is a strong choice for homeowners who want laboratory-grade removal of contaminants without sacrificing flow or under-sink space. Its combination of a 0.0001m RO membrane, alkaline remineralization, and a tankless layout makes it a practical, value-minded upgrade for kitchens where countertop modification is acceptable and fast, great-tasting water is a priority.

Frequently Asked Questions

Does this system add minerals back into the water?
Yes, the unit includes alkaline mineralization that reintroduces ions such as Ca2+, Mg2+, Na+ and K+ after RO filtration.

Will I need to drill my countertop for the faucet?
Yes, faucet installation requires drilling holes in the countertop, so plan accordingly before purchase or installation.

Is the system space saving compared with traditional tanks?
Yes, the tankless design frees up to 70% of under-sink space compared with large tank systems.