Viva21 Reverse Osmosis System (6-Stage Alkaline)

How much space does this system require under the sink?

The system measures 48.3cm x 45.7cm x 40.6cm and requires adequate clearance around the tank for maintenance access. Most standard kitchen cabinets accommodate the unit easily, though you may need to position the tank on its side to clear sink drains. The compact design maximises available storage space whilst providing full filtration capacity.

What contaminants does the 6-stage system actually remove?

The system removes up to 99% of PFAS, chlorine, fluoride, lead, arsenic, asbestos and hundreds of other harmful substances. Each filtration stage targets specific contaminant categories: sediment filters catch particles, carbon stages remove chemicals and odours, the RO membrane blocks microscopic contaminants and the alkaline stage rebalances minerals. NSF certification validates these removal claims through independent testing.

How often do the filters need replacing and what do they cost?

Pre-filters typically need replacement every 6-12 months depending on water quality and usage. The RO membrane lasts 2-3 years under normal conditions. The alkaline stage filter requires annual replacement. Replacement costs vary by stage, with pre-filters being most economical and the RO membrane representing the largest expense. Regular maintenance ensures optimal performance and contaminant removal.

Does the alkaline stage significantly change the water taste?

The alkaline stage produces noticeably smoother, easier-drinking water without creating an artificial or medicinal taste. It rebalances pH levels that standard RO systems typically lower, resulting in water that feels less harsh. Many users report their families drink more water after installation because the improved taste encourages better hydration habits throughout the day.

Can I install this system myself or do I need a plumber?

The system includes everything needed for DIY installation including detailed instructions, faucet, tubings and mounting hardware. Most homeowners with basic tool skills complete installation in 2-3 hours. You'll need to drill a hole for the faucet and connect to existing cold water supply. Professional installation is available if you're uncomfortable with plumbing connections or lack necessary tools.

How does the automatic shut-off feature work?

The leak detection system monitors water pressure throughout the filtration stages and automatically stops water flow when pressure drops indicate a potential leak. This happens instantly without manual intervention, preventing water damage to your kitchen. The system remains shut off until you address the issue and manually reset it, ensuring complete protection even when you're away from home.

What's included in the lifetime customer support?

Lifetime support includes technical assistance with installation, troubleshooting, maintenance guidance and replacement part recommendations. You get direct access to knowledgeable support staff who understand the system thoroughly. This isn't automated chat support but real people with 35+ years combined industry experience who can solve complex issues and provide personalised advice for your specific situation.

How much water waste does this system produce?

Like all RO systems, this unit produces some wastewater during the filtration process, typically at a 3:1 or 4:1 ratio depending on water pressure and quality. However, the high-efficiency design minimises waste compared to older systems. The 50-gallon daily capacity means you get more filtered water per gallon of waste than most comparable systems, making it more environmentally responsible overall.