How to Clean
your Pump and Fittings
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Periodically clean the injection fitting /
check valve assembly, especially when injecting fluids that calcify such as
sodium hypochlorite. These lime
deposits and other build ups can clog the fitting, which will increase the
back pressure and interfere with the pump accuracy.
Warning: Severe cases can physically damage the injection fitting and
the increase back pressure can cause increased wear on the pump components;
gears, bearings and pump tubes. |
Please
follow these steps when cleaning your injection fitting
/ check valves.
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Wash the pump, tubing and fittings out with clean water.
To do this, place the "suction tubing" and "discharge tubing" (injection
fitting too) in a container full of clean water.
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Let the pump run in the clean water for a couple of
minutes to remove all traces of chemical.
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Remove the lime deposits with undiluted vinegar.
To do this, place the "suction tubing" and "discharge tubing" in a
container full of undiluted vinegar. See image to the right.
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Let the pump run in the undiluted
vinegar for 5 to 10 minutes (longer if needed).
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Flush out your pump, tubing and
fittings to remove any excess vinegar.
To do this, repeat steps 1 and 2.
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Tip: If you have a diaphragm
pump head that needs cleaning, follow the same steps above. Refer to
the exploded view in your instruction manual when assembling the
pump head.
Tip: Follow the same steps above to clean a foot valve.
Tip: Standard Injection Fittings are made of Polypropylene.
PVDF Injection Fittings are recommended for use with aggressive
chemicals which are not compatible with Polypropylene.
PVDF Injection Fittings should be considered for use with chlorine at
elevated temperatures.
Tip: Blue-White recommends that you purchase a spare Injection
Fitting for your pump. This is commonly the most neglected part of
most pump installations. You can purchase a spare Injection Fitting
for around $30 (US).
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Caution:
Always wear protective clothing, face shield, safety glasses and gloves when
working on or near your metering pump.
Additional precautions should be taken depending on the solution being
pumped. Refer to MSDS precautions from your solution supplier. |
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Note: All
diagrams are strictly for guideline purposes only. Always consult an
expert before installing the metering pump on specialized systems.
The metering pump should be serviced by qualified persons only. |
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