On 01/11/2019 16:06, Andrew wrote:
On 01/11/2019 07:33, The Natural Philosopher wrote:
On 31/10/2019 13:13, NY wrote:
"The Natural Philosopher" wrote in message
...
That's the namby way to do it, yes, but Real Men„¢ fill the u-bend
up and pour a boiling kettle down. That shifts any fatbergs

you get superheated pure NaOH and lots of pressure.

Which might be a problem with modern plastic drain pipes.

It isn't

One end is always free

It's the heat that would be the problem, not the pressure. Solid NaOH
(crystals) gives out a lot of heat when it dissolves in water. Added
to the fact that the water is already boiling, you could cause the
pipe to soften or even melt.

It never has yet

As you probably do not understand, plastic waste pipes can take
boiling water, and boiling solutions of caustic sodoaq boilss at
approximately the same temperature.



Unless the temperature gets to boiling point rapidly and the steam
cannot escape, whereupon the temperature could well get over 100C.

How -= if te water can get to it, can te steam NOT escape?


Steam burns cause skin a lot of damage very quickly.

Christ you are handwavery received wisdom WIMP
Have you ever done ANYTHING in real life?


--
Theres a mighty big difference between good, sound reasons and reasons
that sound good.

Burton Hillis (William Vaughn, American columnist)