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MAYTAG Whole Home Water Filtration System Owners Manual MA1-5
November 2003
18
Cleaning System
using:
• Chlorine bleach
(surface and
municipal water)
• MAYTAG MC1
Cleaning
Solution
(ground water)
This procedure is to be conducted after the internal prefilter has
been removed from the System. Do not permit the Carbon
Prefilter to come into contact with chlorine bleach or any other
form of chlorine. During this procedure the water level in the
System should be half way up the internal prefilter cavity. If
necessary, add water by slightly opening the inlet ball valve while
observing the water level.
Always wear safety glasses and protective clothing when handling
cleaning chemicals.
10. Add 500mL of household chlorine bleach to System (5.25% as Cl
2
)
OR 250 mL of 12% chlorine pool bleach OR add the MAYTAG MC1
Cleaning Solution following instructions in the package.
Model Cleaning Chemical Used
MWF4100AWS and
MWF4300AWS, any non-
well water
Chlorine Bleach (5.25% as Cl
2
)
Chlorine Pool Bleach (12% as
Cl
2
)
MWF4200AWS, well
water only
MAYTAG MC1 Cleaning
Solution
Never intentionally or unintentionally mix chlorine bleach and MC-1 cleaner as
poisonous and corrosive chlorine gas may be formed.
Chlorine bleach must be less than 3 months old. The active percentage reduces with
time.
After the System has soaked it must be flushed as the sanitizing solution in the water
supply may irritate the skin or cause illness if ingested.
Do not use hot water during maintenance of the System. It is possible that if a hot water
tap is used, high levels of chlorine or MAYTAG MC1 Cleaning Solution will enter the
hot water tank and cause personal injury, illness and/or death.
Soak 60 min.
Re-install Internal
Prefilter.
11. Allow System to soak 60 minutes. Drain System for 5 minutes using the
controller as described in step 4. At the end of 5 minutes the System
Controller Manual indicator will turn off or the System Controller flashing
light will go out.
12. Re-install Stainless Steel Prefilter or install a new Carbon Prefilter and
replace System Cap. When installing a new replacement or a clean,
used internal prefilter, the spigot end of the prefilter (refer to Photo 3a
and 3b on page 15), is carefully fitted into the inlet on the bottom of the
prefilter cavity.