One Shot Vs Scotch Corp

[JimFoster]

I have some slowish running waste pipes from the bath and the basin. I'm looking for something more heavy duty than Mr. Muscle. I've seen these two products:
http://www.amazon.co.uk/Scotch-Corp...ef=sr_1_4?ie=UTF8&s=diy&qid=1303006969&sr=1-4
http://www.amazon.co.uk/Shot-Liquid-Drain-Cleaner-Litre/dp/B002OB4CTS/ref=pd_sim_diy_8
I also want to put some drain cleaner down the kitchen sink. Which one (if any) would you go for?
Thanks to anyone in advance who can give some advice.

 

[HERTS P&D]

DON'T USE EITHER OF THOSE ACIDS, THEY ARE VERY DANGEROUS!
Let alone it will stain your waste/sink forever.

Go and buy a wet vacuum from wickes for about £40. It will clear 99% of all household blockages in baths and sinks.

Andy

 

[Mark Br]

I've had to sort out 3 seperate leaks where One Shot had meted the solvent on joins on waste pipes. One was very expensive for the owner as it had ruined the kitchen ceiling for the flat below.