When in doubt, turn off the feed water valve and unplug the unit. A slow, careful installation done once is infinitely better than a rushed repair done twice.
The Galaxy Aqua Premier system consists of the following components: galaxy aqua premier installation manual
| Problem | Likely Cause | Fix from Manual | | :--- | :--- | :--- | | | Tank valve closed or tank pressure empty (0 PSI) | Open the ball valve. Pump air into tank valve stem to 7 PSI. | | Continuous drain flow (water never stops running to sink) | Check valve failure or low tank pressure | Replace the auto-shut-off valve (ASO valve) inside the unit. | | Water tastes salty/bitter | RO membrane not seated correctly | Remove membrane. Apply silicone grease to O-rings. Re-seat. | | Leak at tubing connection | Tube not cut straight or not inserted fully | Cut tube again squarely. Push in 15mm until you feel resistance. | | Unit vibrates loudly | Sediment filter clogged | Replace PP sediment filter (every 3 months). | When in doubt, turn off the feed water
If you turn on the power immediately, you will burn out the dry pump. Follow this exact sequence: Pump air into tank valve stem to 7 PSI
Read these warnings carefully. They are often printed in red ink in the original :