sodium bisulphate as a pickle for copper?

[Simon CookParticipant @simoncook82779]

Posted by SillyOldDuffer on 28/01/2018 12:14:27:

One Shot Drain Cleaner is mostly concentrated Sulphuric Acid. It's not pure; presumably there's something else in it to help unblock drains or discourage misuse. I've no idea what the additives are or if they're detrimental to pickling. Has anyone tried it?

I use One Shot Drain Cleaner. In fact I have a gauge one boiler sat in some as I type. I have diluted a bit, about 50/50 as I also want the increased volume to drop in a 3.5inch boiler too.

It cleans up lovely. I use Easy Flow flux. I tend to drop things in over night, and in the morning, it's all cleaned up.

I brought this latest batch from a shop in the high street. One of those cheep shops that seems to sell absolutely everything, but nothing you really want to buy.

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