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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🚽 Power up your toilet tank cleaning game—effortless, effective, and fresh every flush!

ODOR NEUTRALIZER - Flush away unpleasant odors and enjoy a refreshing citrus scent every time.
OVERNIGHT DEEP CLEAN - Just add and leave overnight for a fresh, spotless toilet tank without lifting a finger.
PIPE FRIENDLY FORMULA - Free from harsh chemicals, ensuring your plumbing stays safe and clog-free.
TOILET TANK PROTECTOR - Gentle yet effective formula that prolongs the life of your toilet’s internal parts without damage.
EFFORTLESS STAIN ERASER - Say goodbye to scrubbing with a potent citric acid formula that dissolves hard-water deposits and stubborn stains.

Instant Power1806 Toilet Tank Cleaner is a 16 oz powder formula designed to remove hard-water stains, rust, and odors from toilet tanks efficiently. Its strong citric acid base cleans deeply overnight without scrubbing, while being safe on pipes and toilet components. Each flush leaves a fresh citrus scent, protecting and prolonging your toilet’s lifespan.

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