1 · Introduction
Thank you for choosing A Todo Sol. Your RO-J-600 filters your tap water in 6 stages — sediment, chlorine, taste, odour, organic matter, lead and heavy metals — and delivers it on the spot through direct-flow 1:1 reverse osmosis, with no tank and no initial osmotic rejection: the very first glass is already perfect.
With the right care, your system will serve you for many years. This manual covers installation, operation and maintenance so you can get the most out of it. The latest version always lives at osmosis.atodosol.es/en/manual.
2 · Warnings and precautions
- Flush the system when you first use it and after every filter change (20 minutes with the tap open). This flush removes the membrane's protective fluid (food-grade glycerine) and any dust picked up in transit.
- For indoor use only, away from direct sunlight, on a stable surface and at room temperature (the under-sink cabinet is ideal).
- Connect it only to cold drinking water (mains supply or a well tested as safe). Never to hot water or to unknown sources.
- Do not move the system without first shutting off the water supply, draining it and releasing the pressure.
- It is not a toy: keep children away or supervised, and keep the packaging out of their reach.
- The installation must comply with local plumbing regulations.
- If anything malfunctions, shut off the water supply and contact us. If any part is missing or damaged, do not use the system until it has been replaced.
3 · Operating parameters
Running the system outside these ranges can reduce performance and void the warranty. If you have any doubts about your installation, ask us first.
| Maximum flow rate | 600 gallons/day · ≈1.6 L/min (96 L/h), depending on the pressure, temperature and quality of the incoming water |
|---|---|
| Power supply | 220–240 V · 50 Hz · 85 W |
| Feed water | Cold drinking water from the mains, or from a well that meets drinking water regulations |
| Inlet pressure | 1 – 4.1 bar (fit a pressure regulator if yours is higher) |
| Water temperature | 5 – 38 °C |
| Ambient temperature | 4 – 40 °C |
| Inlet water TDS | ≤ 1000 ppm |
| Hardness (recommended) | Below 10 grains per gallon and with no iron present, for optimum results |
💡 TDS = total dissolved solids (mg/L or ppm). The light ring on the tap measures them in real time, so you always know the quality of the water you are drinking.
4 · What's in the box
- Main unit (with the PAC composite filter and the RO membrane already fitted)
- Tap with light ring + data cable
- Power adapter
- 3/8" feed water valve
- Drain clamp
- PE tubing: white 3/8" (inlet, 150 cm) · blue 3/8" (outlet, 150 cm) · red 1/4" (waste water, 150 cm)
- Spare parts kit: 3/8" (×3) and 1/4" (×3) locking clips, 3/8"→1/4" QC tap adapter, Teflon tape, O-rings (×6) and NPT converter fittings
📦 Check that nothing is missing before you start. Is a part missing or damaged on arrival? Call us on +34 692 22 97 13 and we will replace it.
5 · Step-by-step installation
You only need three connections: inlet water, outlet water and waste water. Tools: drill (bits up to 12.5 mm), adjustable spanner, tube cutter or knife, and a cross-head screwdriver. Read all the steps through before you begin.
· White 3/8": feed water valve → inlet port.
· Red 1/4": waste water port → drain clamp.
· Blue 3/8": outlet port → system's tap.
To release a tube: remove the clip, push the collet inwards and pull the tube out gently.
🧊 The system can also feed your fridge, ice maker or coffee machine: the built-in pump drives the filtered water to every point of use, even with dual or triple-outlet taps. For remote installations (utility room, laundry) or several outlets you may need extra tubing, and the flow rate is shared between them — write to us first and we will advise you on the tubes and adapters.
6 · The tap with light ring
The ring on the tap measures the TDS of the water coming out and tells you with its colour, in real time:
If the ring flashes, one of the filters has reached the end of its life: replace it when you can (section 8). Once you have changed the filter and reset it on the control panel, the ring goes back to a steady light.
The tap also works as a night light (always on): a soft glow that helps you find your glass of water in the dark, without turning the kitchen lights on.
💡 Would you rather use your existing tap, or a dual or triple-outlet one? The system works exactly the same with any tap — you only lose the indicator light. The TDS reading may have a small margin of error; the colour is a guide.
7 · Control panel and indicators
The touch panel has one button (RESET) and the indicators PAC, RO and FULL:
- PAC — flashes while the system is producing water; if it flashes when the water is full, the PAC composite filter has reached the end of its life.
- RO — the same as PAC, but for the osmosis membrane.
- FULL — lit while producing water; flashes in standby mode.
- RESET — resets the counter for a filter after replacing it (see section 8).
⚠️ Protection mode: if the system dispenses water non-stop for more than 1 hour, it shuts down for safety and all four lights flash. Unplug it and plug it back in, and it will be reset.
8 · Changing the filters — in under 1 minute
6 filtration stages in just 2 quick-change filter cartridges, no tools needed:
| Composite filter (PAC) | roughly every 12 months · €45 in the shop |
|---|---|
| Osmotic membrane (RO) | roughly every 24 months · €55 in the shop |
These intervals are a guide — they depend on the water quality in your area. There is no need to mark it on the calendar: the system tells you, with the indicator on the panel, the flashing ring on the tap and an acoustic signal. Replacements guaranteed until 2040.
Before you start
Close the feed water valve, open the tap to release the pressure and unplug the unit.
Replacing a cartridge
Resetting the indicator
💧 After changing a filter, repeat the 20-minute flush with the tap open before drinking.
9 · Troubleshooting
The system does not switch on
Try a different power socket (sockets meant for waste disposal units may not be compatible) and check that no cable connection has worked loose. If the problem is the socket under the sink, replace it or consult an electrician.
No water comes out of the tap
Check, in this order: that the feed water valve is open · that no tube is kinked · that the cartridges are properly seated · that the inlet and outlet tubes have not been swapped. If the system dispensed water for more than 1 hour non-stop it will have gone into protection mode (all four lights flashing): unplug it and plug it back in.
The flow rate is low
Check for kinked tubes or leaks at the connections, that the water is between 5–38 °C and the pressure between 1–4 bar. With well water, use pre-filtration: large particles clog the filter and shorten its life.
Dark water comes out when the system is new
This is normal: it is carbon dust from the new filter media. Let the water run for about 5 minutes (or complete the 20-minute flush) and it will be ready.
The filtered water tastes like tap water
Check that the waste water tube (red) has not been connected to the tap by mistake, and that the cartridges are not past their life — if they are, replace them.
The water tastes bad or smells odd
Most likely the PAC filter is saturated: replace it. If the system has not been used for a long time, change both cartridges and purge the system with a full flush. Also check that the tubing is connected as described in this manual.
All the lights are flashing
Protection mode, after 1 hour dispensing water non-stop. Unplug the unit and plug it back in.
Water keeps running after closing the tap
The solenoid valve may be damaged. Close the feed water valve and contact us: it is covered by the warranty.
It makes a noise while running
A soft hum while filtering is normal and stops when you close the tap. If the noise is excessive, the filters may be blocked or the incoming water quality may be poor: check both.
The water takes a few seconds to come out
If the system has not been used for a while, this is normal and does not affect its operation.
The light on the tap does not come on
Check that the tap's data cable is properly connected to the interface on the back of the unit.
10 · Warranty
Your system has a 3-year warranty from the date of purchase, with a valid invoice, in line with European Union consumer guarantee legislation. Behind it there is an installation company with more than 800 customers: if something fails, we answer.
The warranty does not cover:
- Damage caused by improper transport, installation, use or maintenance, or by anything contrary to this manual.
- Units dismantled or tampered with by the user, or with altered labels.
- Damage from external causes: abnormal power surges, fire, flooding…
- Consumables (filters and membranes), which are wear parts.
- Professional use (businesses, hospitality, hospitals, schools): the warranty is for domestic use within the EU.
Always use original A Todo Sol replacements — if a fault is caused by third-party parts, the warranty is void. For repairs outside the warranty period or scope, our technical service is still available (with parts and call-out charged).
Need help?
Customer service: +34 692 22 97 13 · info@atodosol.es
Filters and replacements (available until 2040): osmosis.atodosol.es
You can also message us on the chat on this page — we reply within minutes during office hours.