4x 500ml Traditional Spirit of Salt Multi-Purpose Drain Cleaner Dissolves Effectively Unblock Toilets & Drains Unblocker Remove Stubborn Limescale Buildup In Toilets

This cleans students hard water marks better than any other cleaner I have tried.

Dose the job fast deliver

Use in the saniflo and seems to be working

Why did you choose this product over others?: I'd bought before and was Ok. Last batch weak, heavily diluted, did not work. Will not buy again

I dismantled the U-bend and tipped the water out to make sure it went in neat before pouring in the contents of almost both bottles. Did absolutely nothing after 1/2 hour. The stuff is so weak it has no detectable odor. Didn't even hear a crackle inside the pipes. In the end I poured a little bit on an outside paving stone and, yeah, it did fizz a little so I guess it's not completely inert. Label says "Less than 10%" concentration without being specific. I'll give it an extra star because I know by law they can't sell at higher concentrations.

Spirit of salts is always an excellent loo cleaner

hi no problems with this supplier exactly the same as one bought locally works out nearly 1.50 cheaper per unit highly recommend great for cleaning and unblocking drain recommend wair a facemask especially in enclosed area's

Very dilute hydrochloric acid solution. Nothing like the product you could buy several years ago.