Maverik Posted March 2, 2022 Share Posted March 2, 2022 Just a quick one, but thought I'd share. Purging my coolant system ready for a coolant type change and there's all sorts of nasty deposits left in my clear header tank, its a bit of a tricky beast to clean as it has lots of internal structure so poking a brush in is pretty impossible. Well after some trial and error, I've found that oven cleaner squirted into the bottle and left to sit for a while seems to do a decent job of lifting the crud, you might have to do it a few times with rinse outs and re-applications but it does the job. Mav Quote Link to comment Share on other sites More sharing options...
Retroanaconda Posted March 2, 2022 Share Posted March 2, 2022 I’ve heard adding a handful of pea shingle and giving it a good shake can help as well 👍 1 Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted March 2, 2022 Share Posted March 2, 2022 Oxalic acid (cheap on ebay) also very good for this! As above, gravel or nuts and bolts are great to break down the tougher bits. 1 Quote Link to comment Share on other sites More sharing options...
L19MUD Posted March 2, 2022 Share Posted March 2, 2022 Probably overkill for this application but the pea shingle and cement mixer approach can be great for this sort of thing. I last used it to clean out rust in a long thin fuel tank. Add the pea shingle and put the item in the mixer surrounded by rags to wedge it in and stop it getting damaged then turn on and have a break. Just be careful not to leave too longs as thin fuel tanks can end up with pin holes! Quote Link to comment Share on other sites More sharing options...
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