Unitedlys® Caustic Soda Drainage Block Remover 350G | Fast-Acting, Non-Toxic & Odorless Drain Cleaner Powder | Caustic Soda for Drain Cleaning | Sink & Pipe Drainage Cleaner

Does what it says. Excellent product.easy to use.instantly clear blockage.drain obstruction was cleared. Very helpful without any hassle. Liked it .Go for it if u want to buy without second thought. Happy Thanks..

Excellent caustic soda. Using it in washbasin, other gullies. Works very well . Go for buying

Very nice product. Clears blockage. U am very much satisfied.Worth buying

Didn't find it helpful.

Very effective used only once and all sinks are cleaned now . Now water and waste flush out very easily. Effectively dissolve grease,fats and crusts in drains and oven.

Very bad product

I tried using caustic soda to clear a blocked drain, and it worked very well. First, I boiled about 3–4 litres of water. Once the water was hot, I carefully mixed in 4 tablespoons of caustic soda. Then I slowly poured the solution into the clogged sink drain and let it sit for around 15 minutes. After that, I flushed the drain with fresh water. The blockage was completely removed, and the water started flowing normally again. This method is quick and effective, but it should be handled carefully due to the strong nature of caustic soda.This is not a paid review:)

Before opening the bottle, keep yours hands or gloves dry, as they react instantly. Use a mask, they create a pungent smell. Pour boiling water, for tough stains and clogging. Handle with care.