Acid drain clearer - source and going rate

where do you get that from?

A litre.

NT

I've generally found that caustic soda + boiling water clears drains far better than acids.

But brick acid is your friend for limescale if that's what's blocking it.

Depends what the blockage is. Caustic turns oil and fat into soap but has little effect on human hair. I've never had a blockage I couldn't clear with garden hose and/or a plunger

stuart noble wrote in news:XDErv.11140$ snipped-for-privacy@fx11.am:

Never had a blockage as I don't use bar soap. I use only shower gels, liquid hand soaps and Sanex. Soap is horrible greasy scummy stuff (IMHO)

Normal soaps don't cause blockages, it's the less soluble "soaps" that form when caustic soda reacts with oils and fats that cause problems. Ask Westminster Council.

stuart noble wrote in news:jdSrv.315972

I think that normal soaps have more ability to form a scum which then binds hairs together in the u-bends. With the liquid regime I never "have" to clean the bath, the chrome taps or the shower screen. Everything remains sparkiling. Best labour saving tip I have ever followed.

Fatbergs now contribute to the fuel for Beckton power station

A fatberg inevitably becomes a soapberg, which is larger and more solid than the equivalent volume of oil/fat. A 500gms tub of caustic shoved down somebody's sink would probably be enough to saponify a mountain of OFG and weld it to the sewer walls

You obviously have never used it