Does this Walex Commando product require filling the tank, adding the Commando Black and leaving it set (work) for 12-24 hours? (Walex CMDOBG Commando Black Holding Tank Cleaner)

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May 10, 2016 - 10:02 AM

Yes, for most tanks with minimal build up, add a Commando drop-in and fill the black tank completely. Let sit for 24 hours for best results and flush tank. If it is really bad, it may take a second cleaning to remove all of the build up.

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Does this Walex Commando product require filling the tank, adding the Commando Black and leaving it set (work) for 12-24 hours?

Walex CMDOBG Commando Black Holding Tank Cleaner

Black Holding Tank Cleaner mounts a tactical assault on waste buildup in your RV's black water tank.

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Walex CMDOBG Commando Black Holding Tank Cleaner

Black Holding Tank Cleaner mounts a tactical assault on waste buildup in your RV's black water tank.

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Does this Walex Commando product require filling the tank, adding the Commando Black and leaving it set (work) for 12-24 hours? Walex CMDOBG Commando Black Holding Tank Cleaner Holding Tank Chemicals

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