What are the instructions for use on the bottle? Please advise! Thank you.

pour half of the bottle in the tank leave over night if desired wash down sides

Can this be used when you have a septic field?

According to the Scotch help line at 800-613-4242 Claire said it is safe for septic systems. You can find more cleaner info at http://www.scotchcorp.com/products.html

Will it harm the moving parts or rubber in the tank?

No, it will not harm the moving parts or rubber in the toilet tank. Rather, it removes mineral deposits from the moving parts and prolongs the life of the toilet components. It is a great product. I use it in the two toilet tanks in my home once a month and the tank and components stay clean and work well. Be sure to read the information on the label and follow the instructions. Easy to use, and keeps the toilet tank clean and working well.

has anyone put this directly in their toilet bowl to remove hard stains

Yes, with limited success. The problem is that the mineral stains are at the waterline, and thus aren't in full contact with the cleaner. I even stirred the water around over the stains and left it overnight, but had only minimal improvement. I've found pumace stone works best for removing hard stains, but you have to scrub.

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Instant Power Toilet Tank Cleaner – Bathroom Toilet Cleaning Powder, Removes Rust and Other Minerals, No Scrubbing, 16 Oz

Instant Power Toilet Tank Cleaner – Bathroom Toilet Cleaning Powder, Removes Rust and Other Minerals, No Scrubbing, 16 Oz

4.3/5

Product ID: 3456182

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Details

Brand
Instant Power
Item Form
Powder
Scent
Unscented
Specific Uses For Product
Toilet
Material Feature
Recyclable

⏳Overnight stain removal

⚡Powerful citric acid formula

🛡️Safe on pipes & toilet components

Description

🚽 Power up your toilet tank cleaning game—effortless, effective, essential!

ODOR NEUTRALIZER - Flush away bad smells with a fresh citrus scent.
PROLONGS TOILET LIFE - Keeps internal parts clean to avoid costly repairs.
EFFORTLESS DEEP CLEAN - No scrubbing needed—just pour and relax.
PIPE FRIENDLY FORMULA - Harsh chemical-free, protects your plumbing system.
RUST MINERAL ERASER - Dissolves tough hard-water stains and rust deposits.

Instant Power Toilet Tank Cleaner uses a potent citric acid formula to dissolve rust, calcium, and hard-water deposits inside your toilet tank without scrubbing. Safe for pipes and toilet components, it eliminates odors and leaves a fresh citrus scent, helping extend the life of your toilet’s internal parts with just one overnight treatment.

Specifications

Manufacturer	Scotch Corp.
Part Number	1806
Item Weight	1 pounds
Product Dimensions	3 x 3 x 6.2 inches
Item model number	1806
Is Discontinued By Manufacturer	No
Size	16 Ounce (Pack of 1)
Color	White
Style	Instant Power-16 Ounce
Material	Plastic
Pattern	SUBSTANCE
Volume	1 Fluid Ounces
Installation Method	1
Item Package Quantity	1
Special Features	Non Abrasive
Usage	Toilet
Included Components	Instant Power Toilet Tank Cleaner
Batteries Included?	No
Batteries Required?	No
Warranty Description	Warranty

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Instant Power Toilet Tank Cleaner – Bathroom Toilet Cleaning Powder, Removes Rust and Other Minerals, No Scrubbing, 16 Oz

Details

Description

Specifications

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