Powerful Toilet Tank Cleaner - Instant Power 1806, 16 oz

Manny: Worked great. My problem was that my tank scale built up over time, causing my tank valve to not shut off. It would stick. After using this stuff, it toilet tank finally shuts off. Usually people recommend that replacement of tank valve is the only remedy, which is annoying to do and expensive if done by a plumber. Finally something that works better that shown. Save me cost, time, and headache and probably medical bills from having to change out the toilet valve.

United States on Nov 12, 2023

Susan: Took the whole bottle to clean my tank of rust, used 1/2 bottle per instructions each time. Happy with results.

United States on Nov 11, 2023

NEENIE: My toilet tank water was almost black. Strips of black stains were in the bowl. I used this product and the tank water is clear. No scrubbing needed. I put it in two days in a row for a special cleaning. I will definitely buy this again. I did'nt need to remove the water, dump tons of vinegar and aggressively scrub. The toilet is 23 years old so I thought I would need to buy a new one.

United States on Nov 06, 2023

kathleen sutherland: This worked well .I poured it directly on toilet bowl stain and used a brush to scrub and it did a good job. Stain didn't dissolve totally, left a light water stain. But 90% took it out. Would buy again

United States on Nov 02, 2023

Bartrouille: The toilet reservoire in my appartment was brown, with this product after 24h it was like new

Canada on Oct 24, 2023

Christian Jones: Unfortunately the product did not work very well for me even though I followed the instructions.

Canada on Oct 21, 2023

Pen Name: Left the product in over night as directed however I was surprised each bottle is only good for 2 applications. (Half of bottle per treatment is required).
Not sure it’s worth the money

United States on Oct 05, 2023

jean-guy: A très bien nettoyer mon réservoir en une seul nuit avec 1/2 bouteille

Canada on Sep 22, 2023

Robert Girardin: Bon

Canada on Aug 12, 2023

grammaj: This is a great product. Can not believe how clean the toilet tanks were after one treatment. Our water supply comes from a drilled well which creates a lot of iron and mineral deposits. I followed the advice to use a toilet brush initially to get rid of some of the surface scum, then added 8 oz.. of the product and let it sit for about 9 hours. The difference from black, scaly scum to a natural tank was amazing. Be patient, it will take quite a few flushes to get rid of the loose particles produced in the tank. About 3 days of normal use and all is clean and clear.

Canada on Dec 04, 2022