Reverse osmosis service and filter replacement
Low flow, high TDS, continuous drain flow, pump cycling, unusual taste or leaks can have several causes. We inspect prefilters, membrane performance, pressure, tank or pump operation, valves and the reject-water circuit.
What do we check during RO service?
We review the condition and age of prefilters, feed pressure, membrane rejection, reject-water flow and the shut-off system. For tank units we can assess tank pressure and valve operation; for pumped systems we also check the relevant sensors, pump behaviour and power-related components within the service scope.
Common reasons to request RO service
Diagnostics are useful when:
- the purified-water flow has clearly dropped
- TDS after the membrane has increased unexpectedly
- water runs to the drain continuously after the tank should be full
- the pump starts and stops frequently or the unit reports an error
- a housing, fitting, valve or tube is leaking
- filters are overdue or their replacement history is unknown
Possible RO service scope
After identifying the model, service can include:
replacement and flushing of compatible prefilters and post-filters
measurement of feed and permeate TDS and assessment of membrane rejection
checking feed pressure, restrictor, check valve and automatic shut-off operation
testing tank pressure or pump operation depending on the design
inspection of drain tubing, fittings and accessible seals for leaks
final flushing, leak test and recommendations for the next replacement interval
The final scope is confirmed individually. Not every repair or modification is possible for every model or installation layout.
Request reverse osmosis service
Send the model, age of filters, symptom and, if available, feed and permeate TDS readings. Photos of the connections and drain line are useful.
What happens next? A MojaWoda.com service specialist will contact you as soon as possible to complete the details and agree the next steps.
Photos of the device, rating plate and installation can speed up the initial assessment. Adding them is optional. Do not upload documents or sensitive personal data.
How much does reverse osmosis service cost?
The cost depends on the system design, the number and type of filters, whether the membrane requires testing or replacement and whether the fault concerns the tank, pump, valves or drainage. Model identification before the visit helps us bring compatible parts.
- number and type of filters or membrane required
- diagnostic scope for TDS, pressure, tank, pump or valves
- condition of fittings, tubing and drainage components
- service location and required replacement parts
Four stages of the service
The form details let us start assessing the case before the first phone call.
Request this service-
1
Identify the system
We collect the model, filter history, symptoms and any available TDS readings.
-
2
Measure and diagnose
We check pressure, membrane performance and the operation of shut-off and drain components.
-
3
Service work
We replace agreed consumables or parts and correct identified connection issues where possible.
-
4
Final verification
We flush the system, check for leaks and compare operation after the service.
What information helps with RO diagnosis?
- exact model and approximate age of the system
- date and type of the last filter and membrane replacement
- feed-water and purified-water TDS if you have a reliable meter
- photos of the filter stages, tank or pump, and drain connection
- description of when the symptom appears and whether it is constant
FAQ: Reverse osmosis service
How often should RO filters be replaced?
The interval depends on the model, water quality, consumption and manufacturer guidance. A change in pressure, flow or water parameters may justify earlier inspection.
When should the RO membrane be replaced?
When measurements confirm that its rejection has deteriorated despite correct feed pressure, good prefilters and a properly operating reject-water circuit. Age alone should not be the only criterion.
Why does water keep flowing to the drain?
Possible causes include low pressure, a problem with the automatic shut-off or check valve, restrictor, membrane, storage tank or pump control.
Can I drink the water immediately after filter replacement?
New cartridges and membranes need to be flushed according to the system instructions. The initial water or tankfuls specified by the manufacturer should be discarded.
Content prepared and maintained by the MojaWoda.com technical team. Last updated: .