Blocking up discharge pipe

[rpm]

I agree with rpm chems wont affect the pipe after all its stored in a plastic bottle. But after blockage is cleared the acid is flushed with water.

Not all plastics are the same though. Can you imagine a manufacturer being allowed to sell something that ultimately causes damage, respectively I suggest what matchless has seen is the result of two chemicals mixing.

 

[rpm]

Currently unable to edit the typo and my posts will include a time delay until cleared by a mod.

 

[ShaunCorbs]

I have seen it few times, deformed pipes or eaten away which caused a hole. I only say that because of my experience.
However, I know for certain it will melt the pipes and can cause serious problems.

Would say there's more down to the boiling water your putting down the waste pipe

 

[rpm]

http://och.co.uk/download_resource.php?id=1311

 

[rpm]

NOTE: Will not harm plastic pipes when used as directed.

 

[Stigster]

If hair is the problem, half a mug's worth of Oneshot will quickly burn through it and unblock the pipe. I have never had any damage caused by this product. The pipe can get hot because of the chemical reaction of the acid and water/hair in the pipe but I put some acid in the drain, (open windows for ventilatation, follow all instructions to the letter for safety) it burns through hair in only a minute or two then flush with cold water. Repeat as necessary until the water runs quickly, and completely from the shower waste.