AQVA SAIMAA Reverse Osmosis System, 36 L/h pure water, inc.185 L water tank

Delivery time: 1-5 business days

Reverse Osmosis System for Producing Drinking and Utility Water from Seawater. Produces 36 liters of pure drinking water per hour.

• Delivery or pickup within 1-3 business days after order.
• Order via our online store, email, or phone.

Easy to install, operate and use! Includes all necessary parts, hoses, and components. You only need an appropriate feed pump to supply pressurized water to the system's pre-filter. For water consumption, a distribution pump is required from the water tank. The package includes post-filters and shut-off valves, but installation of these parts is not included as they are part of the building's water system.

The included booster pump is installed between the pre-filter and the reverse osmosis unit using JG quick connectors. As a separate unit, it is easy to mount on a wall.

Designed to Meet the Water Consumption Needs of an Average Family

This system is easy to use and maintain, even for seasonal cottage use. It effectively removes hard-to-filter compounds like uranium, arsenic, blue-green algae (99.9%), fluoride, and chloride (salt), producing clear and clean water. The quantity of suspended solids and humus in the water can affect the filter’s lifespan, but typically, pre-filters are replaced annually, and reverse osmosis membranes every two years (based on aesthetically clean water with an annual consumption of 30,000 to 50,000 liters). It includes a three-stage pre-filtration system with the AQVA L-size filter package.

The system produces purified water into the included 185-liter tank, which serves as a continuous buffer during peak demand. The tank’s water level is regulated by an automatic float switch. When water is used, the water channel opens, and the booster pump starts, ensuring the tank remains full. Water purification capacity: 36 liters per hour at 9-bar feed pressure and 5 parts per thousand salt content (typical coastal areas in Finland range from 2 to 7 parts per thousand).

Booster Pump Specifications:

• Voltage: 24 VDC
• Nominal current: 5.5 amps @ 10 bar
• Power requirement: 132 watts
• Energy consumption to produce 36 liters of water: about 132 Wh.

*Energy consumption is affected by water temperature, salt content, and filter usage. Additional consumption from a well, sea, or lake water pump and distribution pump is also factored in, such as a 500W seawater pump, which might consume around 180 Wh per 36 liters of water. Total consumption for the seawater and booster pumps would be approximately 312 Wh per 36 liters of clean water.

Recommended Operating Pressure:

• 7-9 bar via the booster pump. Pressure is adjustable using the flush valve of the osmosis unit.
• With more powerful AQVA Baltic osmosis membranes, the salt removal efficiency is 95-97%. Water temperature, membrane usage, and feed pressure settings affect performance.

The Complete System Includes:

• AQVA SAIMAA Reverse Osmosis Unit for Seawater (Product Code: AQRO-SA-B)
• Three-stage pre-filtration for suspended solids, humus, odors, and water softening (AQVA L-size filter package, Product Code: AQ3L)
• 185-liter water tank with necessary fittings (Product Code: AQ-TAN-185). During peak consumption, this tank can provide around 220 liters per hour when processing seawater.
• One-micron air filter (Product Code: AQMF1-M)
• Quiet distribution pump from the clean water tank to consumption (Product Code: Scala2)
• Post-filtration unit in AQVA M-size housing (Product Code: AQUF01-M), ensuring hygienic water quality from the tank.
• Neutralizing filter package to adjust pH before water is supplied to the distribution network, containing natural calcium (Product Code: CALBB20)
• Connections for linking the reverse osmosis unit to the pre-filter and water tank.

Typical Annual Operating Costs:

Costs arise mainly from filter replacements. For example, with an annual usage of 50,000 liters of water sourced from the Baltic sea, the average annual cost is around 260€.

Filters to Replace Every Two Years:

• Reverse osmosis membranes x 2 (AQ061-B)
• Post-mineralization filter (CALBB20)
• Post-filter (AQUF01-M)

Filters to Replace Annually:

• AQCB-L, AQPF-L pre-filters
• AQMF1-L mechanical fine filter (18.90€), which may require more frequent replacement depending on sediment and solid content.

Winter Storage:

The reverse osmosis system can be stored for the winter by filling the housings with clean RO water, without the need for additional valves. First, close the water line and drain the pipes and housings. After draining, fill the housings with clean RO water, then plug the water lines using the included plugs. Move the unit to a warm, frost-free location for storage. There is no need to remove the membranes.

In the spring, simply flush the system with clean water for about 30 minutes before resuming normal operation, ensuring the membranes are properly rinsed and ready for use.