Buster Bathroom Drain Unblocker 300ml, Pack of 2 – Sink Unblocker Removes Hair & Sludge in Showers, Baths & Sinks. Fast-Acting Shower Drain Unblocker Clears Blockages & Slow-Draining Water

Works actreat, I used two bottles in a blocked shower drains, left for 24 hours and rinsed with boiling water, completely gone. No horrible smell, but recommend gloves. Will be keeping a stock of this in the house.

Had a problem with water not draining for the bathroom sink and tub which are in the same line. It was easy to use and after leaving it for a while to work its magic, it sorted the problem out very quickly. It saved me having to open up areas to check pipes or even have to call a plumber out to check the drain outside the home which the bath pipes lead too. Highly recommend. Can’t say what was causing our blockage but what ever it was, this worked on it. It does have a bad smell but worth it using.

My shower wasn't draining. I applied a full bottle, leaving it overnight which has cleared the blockage right up. This is my new "go to".

I was dubious about this working as the blockage was further along the pipes but left overnight and in the morning totally clear!! Great product 👌

Said put the whole bottle down leave for 5 mins but if it's just to keep the sink clear put one third in and leave it overnight so I decided to put the whole bottle down and left it for 30 mins flushed it with hot water was flushing as expected would use again