Oasis Aquatics SmartChem User manual

Oasis SmartChem - INSTALLATION AND OPERATION MANUAL Page 1of 22
TABLE OF CONTENTS
1. IMPORTANT WARNINGS & SAFETY INSTRUCTIONS.............................................................. 2
2. GENERAL OVERVIEW................................................................................................................ 3
3. INSTALLATION............................................................................................................................ 4
Mounting.......................................................................................................................................... 4
Installation Diagram......................................................................................................................... 4
Base Plate....................................................................................................................................... 6
Controller Connection...................................................................................................................... 8
App Setup........................................................................................................................................ 9
4. ANCILLARY INSTRUCTIONS.................................................................................................... 13
Maintenance Schedule.................................................................................................................. 13
Probe Cleaning.............................................................................................................................. 14
Replacing The Squeeze Tube ....................................................................................................... 15
5. SYSTEM TROUBLESHOOTING................................................................................................ 16
6. FURTHER INFORMATION........................................................................................................ 19
7. WARRANTY .............................................................................................................................. 21
8. TECHNICAL SUPPORT............................................................................................................. 22
9. NOTES ...................................................................................................................................... 23

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1. IMPORTANT WARNINGS & SAFETY INSTRUCTIONS
IMPORTANT WARNINGS
This manual contains important information about the installation, operation and safe use of this
product. This information should be given to the owner and/or operator of this equipment.
When installing and using this electrical equipment, basic safety precautions should always be
followed. Failure to follow safety warnings and instructions in this manual can result in serious injury
and/or damage to your equipment. Read and follow all warning notices and instructions which are
included in this manual.
The PowerSupply internally contains live components. There is a danger of electric shockif opened.
If the power cord is damaged then it should be replaced by the manufacturer, their agent or similar.
To reduce the risk of injury, DO NOT permit young children to use this product unless they have
been trained by the person responsible fortheir safety and they acknowledge their ability to use such
equipment. To reduce the risk of accidents or incidents, service on the unit should onlybe performed
by your local pool Professional.
Ideally, aswith all pool equipment,the controller shouldbe installed out ofdirectweather.The service
life of the Oasis SmartChem will be longer if it is not exposed to direct sunlight and rain.
Before installing, and turning on the Oasis SmartChem system, take a sample of your Pool/Spa
water to a pool store and have it tested to ensure that the Pool/Spa system is properly balanced.
See below for recommended pool chemical ranges;
CHLORINE: 1 - 3ppm
pH 7.2 - 7.8
TOTAL ALKALINITY: 80 - 150 mg/L
CALCIUM HARDNESS: 90 - 300 mg/L
PHOSPHATE FREE: (0)
TOTAL DISOLVED SOLIDS: Below 1500ppm
Always take a sample of your pool water away from the return jets to ensure as accurate
reading as possible.
Always store Pool Chemicals in a well-ventilated position, at least 1.8M away from your pool
equipment to prevent fume build-up and causing corrosion of your pool equipment.
When mixing acid with water, ALWAYS ADD ACID TO WATER. NEVER ADD WATER TO ACID. If
you add water to acid, it will violently react (creating heat and boiling) and you may be splashed with
acid. Wear protective equipment such as Gloves and Face Shield when diluting the acid.
Only use diluted Acid, never use concentrated Acid. ACID should be diluted with water within the
range of 1 part Acid to 1 part Water (1:1) to 1 part Acid to 2 parts Water (1:2). Dilute the acid in a
well ventilate area and have running water ready. In case of spillage, wash down area immediately.
Always seek medical advice if breathing is affected or an Acid Burn occurs.
NEVER MIX CHEMICALS. Store your pool chemicals in containers that are visibly different by either
colour and or size. Poisonous Gas can be produced if you mix chemicals. Always store chemicals
in accordance to the relevant Dangerous Goods Codes and Standards.
It is highly recommended that you check your Water Chemistry (especially the pH and Chlorine
levels) regularly, either with a quality test kit or at your local pool store to ensure that the Oasis
SmartChem is working correctly, to ensure there are no malfunctions, and to ensure that the pH and
ORP sensors are reading correctly.
It is highly recommended that before you install the Oasis SmartChem system, that you sit the
probe/s in your pool water for 24hrs. This will help the probes to give a more accurate reading from
the time of installation and will help with the longevity of the probes.

Oasis SmartChem - INSTALLATION AND OPERATION MANUAL Page 3of 22
2. GENERAL OVERVIEW
Congratulations on your recent purchase of your Oasis Aquatics SmartChem system.
Please take a moment to read through the entire manual before installing your new unit. Your Oasis
SmartChem system must be installed and operated as specified.
While every effort has been made to ensure that the information contained in this guide is accurate and
complete, no liability can be accepted for any errors or omissions. Oasis Aquatics Pty Ltd reserves
the right to change the specification of the hardware and software described herein at any time without
prior notice.
Thank you again for choosing an Oasis Aquatics Smartchem system. We wish you many happy years
of swimming in your crystal clear pool.
INTRODUCTION
The Oasis SmartChem is designed to monitor and automatically adjust the pH and Chlorine (ORP)
levels of all types of Pools & Spas while the filtration pump is running.
Once the pH and ORP levels have been set in the Oasis Smart App, the Oasis SmartChem will
automatically dose Pool acid (when it is required) to maintain the set pH level. The Oasis SmartChem
will also maintain the systems ORP by either turning the Chlorinator On or Off, or by automatically
dosing Chlorine if you prefer Liquid Chlorine or are utilising an Ioniser.
The pH number is a measurement of how Acidic or Alkaline your Pool/Spa systems water is. As close
the 7.0-7.8 is almost neutral so it’s not harmful to swimmers. To much acid (low pH) will cause the
surface of the pool to degrade quicker.
The ORP is a measurement of Chlorine activity (Oxidising properties) in your Poo/Spa systems water
and is measured in millivolts.
It has been ascertained that a Pool system with an ORP reading of 650Mv will eliminate E-coli type
bacteria in about a second. The lower the ORP reading, the longer it will take for the bacteria to be
eliminated from the system. An ORP reading of 550Mv will mean that it could take up to 2hrs for the
bacteria to be eliminated.
IMPORTANT
THE OASIS SMARTCHEM IS NOT DESIGNED TO BRING THE POOL/SPA SYSTEM INTO
BALANCE; IT IS DESIGNED TO MAINTAIN A BALANCED SYSTEM.
Make sure your pool water is well balanced with the correct pH, Total Dissolved Solids (TDS), Calcium
Hardness levels and is Phosphate free.

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3. INSTALLATION
Mounting
IDEALLY, AS WITH ALL POOL EQUIPMENT, THE CONTROLLER SHOULD BE
INSTALLED OUT OF DIRECT WEATHER.
•Find a suitable location to mount the control box.
•The controller should be mounted no closer than 3 metres from the water’s edge, at a minimum
of 600mm above the ground.
•Fix the mounting bracket to a solid structure with the screw and wall plug kit provided. Slide the
controller on, locking it into place. Adjust the screws on the back of unit to ensure a snug fit.
•To remove unit, lift and gently pull away from structure.
PACKAGE CONTENTS:
•Oasis SmartChem controller (with a peristaltic pump attached).
•pH sensor (or pH + ORP depending on which kit is being fitted).
•Sensor Manifold (suits 50mm pipe, 2 reducing bushes required if installing into 40mm pipe) for
the sensors to mount into (the centre of the inputs will be drilled out to accommodate the sensor
probes).
•A power cable providing power to the Oasis SmartChem from a valve actuator port
•A communication cable to connect the Oasis SmartChem to either the Maser controller (if no
Expansion Units are connected) or an Expansion Unit (if fitted).
•A check valve.
•An Injection Manifold (suits 50mm pipe, 2 reducing bushes required if installing into 40mm pipe)
for the injection hose to be connected to.
•A bottle/tub connection kit (including lids, breather connection and bottle/tub tube).
•A 5M length of tubing.
•Blanking caps.
Installation Diagram
WARNING: DO NOT plug in if carton has been wet
Filter
Filter Pump
Pool Suction
Solar Suction
Solar Return
Heater
ORP & pH Probes in
Sensor Manifold
Chlorinator Cell/
Ioniser Housing,
Ozone Venturi, etc
Injection Manifold
Pool Return
AQUACHEM
AQUATEK/EXP
Through Shed
Connection
Check Valve
Acid Tub
Oasis Smart / EXP
Oasis SmartChem

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DO NOT CONNECT POWER TO THE OASIS SMARTCHEM UNTIL ALL THE
FOLLOWING CRITERIA HAS BEEN MET.
•Take a sample of your pool water to a pool shop, have it tested and have balanced your pool to
the appropriate ranges as specified on pg1.
oAlways take a sample of your pool water away from the return jets to ensure an accurate
reading.
•It is highly recommended that before you install the Oasis SmartChem system, that you sit the
probe/s in your pool water for 24hrs. This will help the probes to give a more accurate reading
from the time of installation and will help with the longevity of the probes.
DO NOT CUT ANY PIPEWORK TO FIT THE MANIFOLDS BEFORE TURNING ANY
FILTRATION, CLEANING, CIRCULATION OR HEATING PUMPS OFF.
You will need to leave them off for a period of time to ensure the glue used to connect the
manifolds has had the appropriate time to dry and bond properly to achieve correct pressure
rating.
The Sensor & InjectionManifolds suit 50mm pipe,4 reducing bushes will be required if you are installing
the manifolds into 40mm pipe.
•The pH and ORP probes and the appropriate Sensor Manifold have been installed into the
pipework (see the diagram below).
oThe pH and ORP probes will be inserted into small bottles of solution. It is advised that
you keep these bottles (after rinsing them out) for long term storage capability of the
probes if necessary.
•The pH and ORP probes have been plugged into the Oasis SmartChem controller. (see diagram
below)
•The communication cable from the Oasis SmartChem has been connected to either the Oasis
Smart Master Controller or the right-hand port in the last Expansion Unit. (see diagram below)
WATER FLOW
Install the probes into the
coupling like this,
it will help the probes
give a more accurate
reading.
Not like this

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Base Plate
•The Injection Manifold has been installed into the pipework.
oPlease ensure that a blanking cap is installed on the un-used injection port to prevent
water leaking.
•The injection hose has been installed between the peristaltic pump and the Injection Manifold.
oAllow a little extra tubing length in case the injection tubing needs to be trimmed at a
later stage.
HINT: Soak the ends of supply and injection hoses in hot water for 30 seconds to soften them, this will
make it easier when fitting the tubes to the pump barbs.
The lid kit has been installed into the bottle/tub of Pool Acid.
IMPORTANT: Always store Pool Chemicals in a well-ventilated position in accordance to the
relevant Dangerous Goods Codes and Standards, to prevent fume build-up, and at least 1.8M
away from your pool equipment so as to not cause corrosion damage of your pool equipment.
Supply Hose –Goes
from lid of the Pool
Acid bottle or tub to
this side of the pump.
Injection Hose –goes
from this side of the
pump to the Injection
Manifold.

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•The injection hose hasbeen installed between the peristaltic pump and the bottle/tub of PoolAcid,
with the Check Valve installed between the peristaltic pump and the lid of the Acid bottle/tub lid.
•Install some leftover injection hose to the breather port on the bottle/tub lid.
IMPORTANT: If the bottle/tub of
Pool Acid is stored inside a shelter
or shed, run some of the injection
piping from the breather port on
the lid, to outside of the shed or
shelter.
A through shed connection is
supplied to prevent a build-up of
fumes inside the shed/shelter.
ENSURE THAT THE OASIS SMART CONTROLLER IS RUNNING THE LATEST VERSION OF
SOFTWARE.
If not, complete any available Firmware Updates (see pg 9 of the Oasis Smart Quick Start Guide for
instructions on how to complete).
•Lastly, connect the power cable from a valve actuator port (at the base of the Oasis Smart Master
Controller) to the Oasis SmartChem (see Base Plate Diagram on page 5). As power is only been
taken from the Valve Actuator output, the valve
INCORRECT
CORRECT
1.8M between
✓

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Controller Connection
1. On the Oasis Smart Master Controller, you will need to enter into the Expansion Unit portion of
the menu. Do this by pressing the Menu button until you see 1. Filter Times appear, scroll down
to 6. Installer setup and press Enter. You will see 6-1. Appliances, scroll down to 6-10 Expansion
Units and press Enter.
2. Once you Enter into 6-10 Expansion Units, you will be pressing Enter to get through all the setting
to do with the normal Expansion Units. The controller will display:
oEXP:1 1.00B1 *
oEXP:2 NONE
oPress Enter and the controller will then display:
oNUMBER EXP
oUNITS 1
oPress Enter and the controller will display:
oRESET ALL
oADDRESSES NO
oEnsure that NO is displayed and press Enter. The controller will display:
oSCAN FOR EXP
oUNITS NOW? NO
oEnsure that NO is displayed and press Enter. The controller will then display:
oSMARTCHEM
oV1.00B07 (If already received, otherwise this line will be blank)
3. If the version number is already displayed then the Oasis SmartChem is now active to be utilised
through the App (go to page 7 Of this guide) and you can exit the menu by pressing the Menu
button, or if you need to reset the Oasis SmartChem unit press Enter and see below for further
instructions.
4. If the lower line was blank, press Enter and the controller will display:
oRESET
oSMARTCHEM NO
5. If you would like to Reset the Oasis SmartChem or install another unit, use the ↑ or ↓ buttons to
change from NO to YES and press Enter. The controller will then display that the “Reset Done”,
press Enter to move to the next function.
6. If you are setting up the Oasis SmartChem for the first time, make sure the controller has NO
displayed and press Enter. The controller will display:
oSCAN SMARTCHEM
oNOW NO
7. If you don’t want to scan for an Oasis SmartChem , make sure the controller is displaying NO
and press Enter and the controller will exit you to the Installer Menu.
8. If you have Reset the Oasis SmartChem or are setting it up for the first time you will use the ↑ or
↓ buttons to change from NO to YES and press Enter. After a few seconds of searching, the
controller will then display:
oSMARTCHEM
oV1.00B07
Once it does, the Oasis SmartChem is now active and can be utilised through the App and you can
exit the Expansion menu by pressing the Menu button on the controller.

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App Setup
If you not already completed the latest Firmware Update through the Oasis Smart App, do so now to
be able to continue further with the Chemical Setup. See pg 9 of the Oasis Smart Quick Start Guide for
instructions on how to complete the Firmware Update.
Updated App Menu
When you have updated the Firmware of your Oasis Smart system and
completed the Controller Connection, you will see 2 new options in the
App menu.
The first one is Chemical Balance.
The second new option is Chemical Setup.
You will not be able to set either your pH level or
your ORP level without first going into the Chemical
Setup menu option first.
Chemical Setup
When you go into the Chemical Setup option in the menu you will see this
display.
The first thing that you will need to do, is tell the Oasis SmartChem
system what sizes your pool and spa are.
Simply tap on the figure beside Pool Size and then scroll either up or
down to the figure that best represents the size of your pool, and press
OK.
Note: If the size of your pool is in-between 2 pool sizes, select the size
that is closet.
For example; choose the Pool Size of 55,000L if your actual pool size is
53,500L.
Do the same for your Spa.
Note: If you don’t have a spa, then the option to choose the Spa size
won’t be displayed.
Once you have set your Pool size (and Spa size if you have one), tap on
the red buttons beside pH Sensor and ORP Sensor (will turn Green) to
activate them.

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Chemical Setup (continued)
After you have activated both the pH and ORP Sensors the Oasis SmartChem
will display this.
•You will be able to adjust the pH Offset. The Offset allows you to adjust the
reading of the probe. Your probe may be reading pH at 7.7, but after proper
testing of your pool water the actual reading may be 7.6. You would then
adjust the Offset to -0.1.
•The reading in brackets below the Offset is your current pH reading.
•The pH Set Point is the level of pH that you would like your Pool/Spa
system to be running at. You can either tap along the line anywhere or tap
and drag to adjust the Set Point to where you would like it to be.
•You will also need to tap the button beside Acid Dosing to activate/de-
activate the Acid Dosing Pump attached to the side of the Oasis
SmartChem controller.
•The Acid Dosing button will generally be left On. The only time you might
turn it off would be if there is a problem with the pump, you are changing
over the acid bottle/tub or if you have run out of Acid.
The same functionality applies to the ORP Sensor.
•The Offset will allow you to adjust the reading of the probe either higher or
lower. This will in turn effect when chlorination is called for, either delaying
chlorination or increasing its frequency.
•The reading in the brackets is your current ORP reading.
•You will tap and or slide the Set Point to set what Level of ORP you would like your system to run
too.
•When the Probe Settle Time is turned on, no dosing is done for the first 30 minutes after the
circulation pump is turned on. If it is turnedOff, dosing will commence as soon as the pump starts.
Notes:
•Acid is only dosed when the pH reading is higher than the pH Set Point. If the pH reading is above
8.5 then acid will not be dosed. You will need to manually add acid.
•The pH Offset will only allow adjustment of up +1.5 or -1.5 points.
•Chlorine is added/dosed only when the ORP reading is below the ORP Set Point. If the reading is
below 300mV then Chlorine won’t be dosed, and you will need to manually add chlorine.
•The ORP Offset will only allow an adjustment of +150mV to -150mV.

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Chemical Balance
The other new menu option is Chemical Balance. (See the App Menu on
page 7)
•In this menu option you will be able to adjust your set levels for both
pH and ORP. Both of these levels can be adjusted by either
dragging the set point or by tapping along the Set Point line.
•Underneath the Set Point line will be displayed what the Acid Pump
is doing. For instance (as displayed to the right); the Acid pump is
in its waiting cycle after dosing, to take a future reading to see if it
needs to dose again. It is also displaying the last time that it dosed.
•The Prime button allows you to cycle the Acid Dosing pump for 10
seconds to get the pump primed and to ensure that it is working.
After you press the priming button, it will give you a 10 second count
to let you know how much time is left for the priming cycle.
The following is displayed on the App Home Screen.
There is only a limited amount of information displayed in regards to the
Chemical Balance information.
It displays whether the pH is Low, Normal or High.
The ORP will also display whether it is Low, Normal or High.
On the right-hand side of the box there is a plus (+) symbol that when
tapped, will allow the Chemical balance window to be expanded.
Once the Chemical Balance display window is expanded, the window
displays the following.
With the pH highlighted, the Chemical Balance window will display;
1. Whether the pH is Low, Normal, or High.
2. What the actual pH level is currently.
3. What the Set Point for pH is set to achieve.
NOTES:
•A low pH reading indicates that the pool water has become Acidic. This
can lead to skin and eyes being irritated during swimming.
•A high pH reading indicates that the pool water has become Alkaline.
This makes it harder for the Chlorine to kill the germs in the poolwater.

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Chemical Balance (continued)
When ORP is highlighted, the Chemical Balance window will display;
1. Whether the ORP is Low, Normal, or High.
2. What the actual ORP level is currently.
3. What the Set Point for ORP is set to achieve.
NOTES:
•A low ORP reading indicates that the pool water may be carrying live
and potentially dangerous germs that could make swimmers ill.
•AhighORP readingcouldleadtoswimwearbeing bleachedand could
also irritate the skin and eyes of swimmers.
Diagnostics
If your Pool/Spa systemswater is not balanced correctly, you may see the following on the home screen
of the App.
What the Oasis SmartChem is displaying is the following;
1. The pH reading is outside of the systems reading range of 5.5
to 8.5. If the reading is lower than 5.5 (<5.5) or higher than
8.5 (>8.5), the controller won’t dose Acid and will display
CHECK in the pH box.
If the system is displaying CHECK, you will need to take a
sample of your pool water to your local pool shop and get it
tested and add the amount of Acid or Buffer required to get
the pH level back to where it needs to be (7.2 –7.8).
If the system is displaying ---, it indicates that there may be a fault with
the probe itself or indicates an invalid reading.
2. The ORP reading is outside of the systems reading range of
300mV to 800mV. If the reading is lower than 300mV (<300)
or higher than 800mV (>800), the controller won’t Chlorinate
and will display CHECK in the ORP box.
If the system is displaying CHECK, you will need to take a
sample of your pool water to your local pool shop and get it
tested and either;
a. add the correct amount of Chlorine required to get the ORP level back to where it needs
to be (about 650mV), or
b. stop chlorinating the pool for a certain amount of time to allow the chlorine level to lower.
If the Chlorine level is to high, a Chlorine Reducer chemical can be added to the pool to
reduce the Chlorine level.
If the system is displaying ---, it indicates that there may be a fault with the probe itself or indicates an
invalid reading.

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4. ANCILLARY INSTRUCTIONS
Maintenance Schedule
Fortnightly
•Check the level of the Acid bottle /tub to ensure that it won’t run dry. Use a 2:1 water acid mix
ratio.WARNING: Always add concentrated acid to waterwhen diluting, NOT water toAcid.
•Test pool Water Chemistry.
3 Monthly
•Ensure that the Check valve is holding liquid in the feed tube.
•Check and ensure that the acid feeding tube is clean and clear where it injects acid into the
piping. Clean or trim the tubing if required.
6 Monthly
•Get your pool Water Chemistry tested at a pool store. Adjust calibration of the sensor readings
if required. Use the pH and ORP Offsets to adjust (see page 8 of this manual).
•Check all tubes, fittings and connections to ensure no leaks.
•Check the squeeze tube in the Peristaltic pump to ensure that it isn’t leaking, replace if doing
so. Apply a silicon lubricant to the tube and gears if necessary
•Clean and re-calibrate the probes if necessary. Cleaning instructions are on Pg 16 of this
manual.
Yearly
•Check the squeeze tube in the Peristaltic pump to ensure that it isn’t leaking, replace if doing
so. Apply a silicon lubricant to the tube and gears if necessary. Replacement Part No: 3223109.
oIt is recommended that the squeeze tube be replaced every 12 months for optimum
performance.
Regular checks and maintenance will ensure trouble free performance and longevity of the
Oasis SmartChem system.
Get in contact with your local pool technician if you need help with the maintenance of your pool and or
your pool equipment and the Oasis SmartChem system.

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Probe Cleaning
pH Probe
The cleanliness of the sensor and junction is critical for an accurate measurement. Drift (Offset) and a
slow reading response are often due to an unclean sensor or junction. DO NOT use abrasive materials
to clean the probe. The IH40 is supplied with a white cleaning tool. It can be used instead of the
tissue/cotton detailed below. Simply put some of the cleaning agent in the tool and use this to clean the
membrane.
•To remove inorganic deposits and scale
oSoak membrane in dilute HCl for an hour. Wash well with water and condition in 20%
KCl solution before use.
•To remove solids and organics
oWipe the membrane with cotton or tissue soaked in mild non-alkaline detergent. Wash
with water and condition in 20% KCl before use.
•To remove strongly adsorbed and chemically bonded impurities
oUse a non-abrasive cleaner such as JifTM undiluted on a soft cloth. Clean the pH
membrane, rinse with water and condition in 20% KCl before use. In the case of protein
contamination use 5% Pepsin in 0.1M HCl solution.
HINT: Calibratethe pH probe regularly. The frequency of calibration will depend on the level of accuracy
desired. When calibrating, always use fresh buffer solution.
ORP Probe
The cleanliness of the sensor and junction is critical for an accurate measurement. Drift (Offset) and a
slow reading response are often due to an unclean sensor or junction. DO NOT use abrasive materials
to clean the probe.
•To remove inorganic deposits and scale:
oSoak sensor tip in dilute HCl for an hour. Wash well with water and condition in 20% KCl
before use.
•To remove solids and organics:
oWipe the sensor tip with cotton or tissue soaked in mild non-alkaline detergent. Wash
well with water and condition in 20% KCl before use.
•To remove plated metals from ORP tips.
oSoak the tip in approximately 0.1M nitric acid for 15-20 minutes, followed by conditioning
in 20% KCl.
HINT: Clean the electrode periodically. Unclean sensor tips are a very common source of error in ORP
measurements.

Oasis SmartChem - INSTALLATION AND OPERATION MANUAL Page 15 of 22
Replacing The Squeeze Tube
The first thing that you will need to do is open the App Menu
and go into Chemical Setup. When you are is the Setup menu
you will need to turn the Acid Dosing button to the Off position.
This will stop the peristaltic pump from operating while you are
replacing the Squeeze Tube.
Remove the tubing from the Intake and Output sides of the
Peristaltic Pump.
To replace the squeeze tube of the Peristaltic pump, you will
need to remove the head cap (green cover).
To remove, put your thumb under the lip at the bottom of the
head, gently but firmly lift the cover.
The head cover will come off
to expose the squeeze tube
and the head.
The pump head can be pulled out (the squeeze tube will come
with it) and a new squeeze tube can be wrapped around the
head, and the head re-installed onto the motor shaft.
Ensure that you apply some appropriate, silicon-based
lubricant onto the pump head and the squeeze tube.
Once the lubricant has been applied, the head cover can be
re-installed. Ensure that the squeeze tube is seated properly.
Re-attach the tubing running from the bottle and running to the
dosing manifold, making sure that both are clean and clear.
Once re-installed, ensure that you go back into the Chemical
Setup menu in the App and turn the Acid Dosing button back
to the On position and prime the dosing pump as per page 9 of
this manual.

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5. SYSTEM TROUBLESHOOTING
If you suspect for any reason your Oasis SmartChem system is not performing or running as it
should be, here are some handy troubleshooting tips that may assist you.
The first thing to do is test your Water Chemistry with either a good quality test kit or take a sample of
your pool water to your local pool store and have it tested.
Fault Indication
Remedy
pH is too Low
Excessive fresh water added to the pool (through either rainfall or topping
up the pool with fresh water) which dilutes the Total Acid level. Adjust pH
level as directed by your local pool shop.
pH probe not reading correctly
Clean and or Re-calibrate probe or adjust probe Offset (as per pg 8).
pH Set Point is set to Low
Adjust pH Set Point to appropriate level (7.2 - 7.8).
pH is too High
Filter run time/s aren’t sufficiently long enough to ensure appropriate
dosing rates
Lengthen filter run time/s.
Acid dosing bottle/tub is empty
Re-fill bottle/tub with diluted acid at the appropriate ratio.
CAUTION Always add acid to water when diluting, NOT water to acid.
Dosing acid is over diluted -
Re-dilute the acid at a ratio closer to 1 part acid to 2 parts water.
pH probe not reading correctly
Clean and or Re-calibrate probe or adjust probe Offset (as per pg 8).
pH Set Point is set to High
Adjust pH Set Point to appropriate level (7.2 - 7.8).
Manual Overdosing of Chlorine (Shock Treatment)
Maintain pH Set Point. It may take a period of days to weeks or the pH
reading to drop return to normal levels. This depends on how large the
Overdose (shock treatment) was. The Oasis SmartChem will continue to
operate normally during this time.
Dosing pump is not operating as it should - Check the following;
Acid dosing pump is working
Press the Prime button (as per pg 9) and confirm pump works.
Check for a blockage at the Injection point
Remove the injection tubing from the Injection Point, check/ensure the
tubing is clean and clear. If not, clean/trim the end of the tubing and re-
attach.
Air leakage
Check all connections to ensure they are tight and no air leaks are
occurring. If any connections look suspect, trim the tubing and re-attach.
Acid Dosing container is air tight
If the dosing container is air tight, it won’t allow any liquid to be pumped
from the container. Ensure appropriate container lid is fitted and the
connection points are clean and clear.
Dosing pump squeeze tube is leaking
Squeeze tube needs replacing.
Check to ensure that no water is returning to the Dosing container.
Replace the Check valve (non-return valve) if there is water returning to
the dosing container. If there is no Check Valve installed, please install
one.

Oasis SmartChem - INSTALLATION AND OPERATION MANUAL Page 17 of 22
Chlorine is too Low
Filter run time/s aren’t sufficiently long enough or Chlorinator output isn’t
high enough
Lengthen filter run time/s or increase Chlorinator output. Make sure
Chlorinator is working.
Filter requires a back wash
Back wash filter.
Stabiliser (Sun Block) level is too Low (Outdoor Pools)
Adjust level of Stabiliser to appropriate level
Note: The need to run Stabiliser in an outdoor pool may be reduced
if your Chlorinator is sufficiently sized to produce enough chlorine
to negate the use of Stabiliser, ie the bigger the chlorinator the lower
the stabiliser level needs to be.
pH level is too high –Adjust pH level to correct level (7.2 –7.8).
ORP probe not reading correctly - Clean and or Re-calibrate probe or
adjust probe Offset (as per pg 8).
ORP Set Point is set to Low - Adjust ORP Set Point to appropriate level,
700mV.
Chlorine is too high
pH level is too high
Adjust pH level to correct level (7.2 –7.8).
Total Dissolved Solid levels are too high
The only way to decrease the Total Dissolved Solids (<1500ppm) level of
your pool is to introduce fresh water to dilute the pool water. Give your
Filter a really long backwash to drop the level of your pool (by the amount
recommended by your pool shop) and re-fill with fresh water.
Stabiliser (Sun Block) level is too High (Outdoor Pools)
Adjust level of Stabiliser to appropriate level (30-50mg/L). As per above.
Note: The need to run Stabiliser in an outdoor pool may be reduced
if your Chlorinator is sufficiently sized to produce enough chlorine
to negate the use of Stabiliser, ie the bigger the chlorinator the lower
the stabiliser level needs to be.
ORP probe not reading correctly - Clean and or Re-calibrate probe or
adjust probe Offset (as per pg8).
ORP Set Point is set to High - Adjust ORP Set Point to appropriate level,
700mV.
Manual Overdosing of Chlorine (Shock Treatment) - Maintain ORP Set
Point. It may take a period of days to weeks or the ORP reading to drop
back to normal levels. This depends on how large the Overdose (shock
treatment) was. The Oasis SmartChem will not continue adding chlorine
during this time period.
DISCLAIMER: Information in this guide is intended to provide general information on a particular
subject(s) in good faith and is not an exhaustive treatment of such subject(s). Its use is beyond the
control of the author, contributor, publishers, licenced professionals and under no circumstances should
the guide be used as a substitute for such professionals. No representations or warranties are made
that the content, advice and recommendations in this guide are current, free from errors or omissions,
or appropriate for the user’s circumstances or abilities. No liability or responsibility is accepted persons
or OASIS AQUATICS Pty Ltd appointed agents. OASIS AQUATICS Pty Ltd reserves the right to
refuse warranty if any damage caused to the chlorinator or auxiliary pool equipment that is not a result
of a manufacturer’s defect.

Oasis SmartChem - INSTALLATION AND OPERATION MANUAL Page 18 of 22

Oasis SmartChem - INSTALLATION AND OPERATION MANUAL Page 19 of 22
6. FURTHER INFORMATION
•Should power be interrupted for any reason, the controller will resume normal operation when
power is restored.
•Degree of protection against moisture: IP33.
•Store pool chemicals safely, at least 1.8 metres away from all pool equipment.
•MAX combined rated input load for the JVA socket is 24Vac at 1.2Amps.
•The pool size and the proximity to the pH & ORP Set Points determines how long (in seconds)
the pump will actually dose for.
•The length of time between one dose of acid and the next is approximately 30 minutes. This
gives the pool water a chance to mix properly and create a true reading before the next dose is
administered. This helps to ensure that overdosing doesn’t occur.
•The pH dosing pump will inject the acid into a spa for either 2 or 4 seconds per dose. The
amount of dosing time will depend on the size of the spa.
•The pH dosing pump will inject acid into a pool at a time range of between 4 and 50 seconds
per dose. The amount of dosing time will depend on the size of the pool. The larger the pool,
the longer the dosing time.
•On the Home screen of the Oasis Smart App, pH readings will only be displayed of a value
between 5.5 to 8.5. If the reading is outside of this range, the App wil display either, <5.5 (check),
>8.5 (check), or –-(check).
•The Smartchem will be able to read a pH range of 0 (strongly acidic) to 14 (strongly alkaline)
but any reading outside of the 5.5 to 8.5 range will only be displayed in the Chemical Setup
option of the menu.
•ORP readings on the home screen of the Oasis Smart App will only be displayed where the
value is between 300 to 800. If the reading is outside of this range, the App wil display either,
<300 (check), >800 (check), or –-(check).
•The Smartchem will be able to read a ORP range of 0 (little to no Chlorine) to 1000 (possibly
over chlorinated) but any reading outside of the 300 to 800 range will only be displayed in the
Chemical Setup option of the menu.
•In the Chemical Balance window on the home screen of the Oasis Smart App, the status text
will display whether the pH or the ORP readings are ‘Low’, ‘High’, or ‘Normal’ in comparison to
the Set Points for both.
•If for either the pH or ORP levels, ‘---' is displayed, this is indicating a missing/faulty probe or an
invalid reading. A water sample test is advised at this point.
•The Sensor & Injection Manifolds suit 50mm pipe, 4 reducing bushes will be required if you are
installing the manifolds into 40mm pipe
•If the pool system is to shut down for a lengthy period of time (eg; repairs to the pool surface),
it is recommended that the pH & ORP probes be removed from the Injection Manifold and be
stored appropriately. This involves putting storage fluid (20% KCI) into the small bottles the
probes came in, putting the probes into the fluid, and screwing the nut to the top of the bottle.
oIf you don’t remove the probes and put the pH & ORP probes into the storage solution,
the probes may be damaged and they won’t be covered under warranty.