Six cleaner drop-ins per bag
One treats up to 40 gallons
Periodic black-tank cleaning
Camco 41560 Rhino Holding Tank Cleaner Drop-Ins, Mariners Warehouse SKU 97972, supplies six measured cleaner portions for periodic RV black holding-tank maintenance. Choose this package for the documented cleaning task rather than assuming it has the same routine dosing schedule as every odor-control treatment.
The source describes an enzyme-complex cleaner intended to break down waste accumulation on tank walls. One drop-in is listed for a tank up to 40 gallons, and the maintenance reference is one treatment every three months. Those references do not replace the current package instructions for water, contact time, tank condition and draining, or guarantee that a fouled level sensor will return to accuracy.
Read the current product label and applicable safety information before use. Confirm tank capacity and the RV maintenance procedure, then use the exact water amount, dose, contact time and disposal instructions on the purchased package. Keep the drop-ins dry before use and do not combine them with other tank chemicals unless the labels explicitly permit it.
Clear Product Details
Review the 16 oz gel format, specifications and application directions.
Surface Guidance
Check fiberglass, gelcoat and finish suitability before use.
Product Support
Ask about your surface and stain type before ordering.
Shipping & Returns
Review shipping information and return conditions before purchase.
Use & Compatibility Guides
Identify the Product Role Before Checking System Fit
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Keep It out of Drinking Water
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Confirm Tank Capacity
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Read the Complete Treatment Procedure
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Keep Claims within the Cleaning Role
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Count and Store the Portions
Periodic Cleaner Drop-Ins or Liquid Enzyme Treatment?
Continue Your Water & Sanitation Selection
Frequently Asked Questions
What does SKU 97972 include?
One bag containing six Camco 41560 Rhino Holding Tank Cleaner Drop-Ins. Each is listed for up to a 40-gallon tank under the label procedure. No liquid enzyme bottles, tools or rinse equipment are included.
How many drop-ins are included?
Six cleaner drop-ins in one bag.
What tank capacity is listed per drop-in?
Up to 40 gallons per drop-in under the current product-label procedure.
How often is periodic use listed?
The source gives every three months as a maintenance reference. Follow the current label and RV requirements for the actual conditions.
Is this the same as 41511 liquid treatment?
No. 41560 is the periodic cleaner drop-in package; 41511 is a separate eight-bottle enzyme-treatment listing.
Will it guarantee accurate tank sensors?
No sensor-restoration guarantee is made. Persistent reading problems need separate diagnosis.
Can I mix it with another tank chemical?
Only if the actual product labels explicitly permit the combination. Follow all current handling and disposal directions.
How can I confirm the right selection?
Contact Mariners Warehouse with SKU 97972, MPN 41560, your holding-tank capacity, maintenance task and current product-label directions.
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