SanFran 12 Posted September 6, 2015 Share Posted September 6, 2015 Just removed the stainless steel tanks to clean etc. No inspection ports. Any tips on how to wash away decades of grime? Quote Link to post Share on other sites
Steve Pope 243 Posted September 6, 2015 Share Posted September 6, 2015 SS will cope with some very agressive detergents, dairy companies use caustic and Hydrocloric as well ( NOT at the same time ) lots of fresh water flushing until the water runs clear folllowed up with a 4 or 5 to one caustic swill (hot water will improve the effect) followed by several flushes with fresh water, Remember rubber gloves and eye protection when using caustic. Quote Link to post Share on other sites
SanFran 12 Posted September 6, 2015 Author Share Posted September 6, 2015 Cheers. Mitre 10 has essence of salt. I believe another name for hydrochloric. Quote Link to post Share on other sites
too_tall 15 Posted September 6, 2015 Share Posted September 6, 2015 SS will cope with some very agressive detergents, dairy companies use caustic and Hydrocloric as well ( NOT at the same time ) lots of fresh water flushing until the water runs clear folllowed up with a 4 or 5 to one caustic swill (hot water will improve the effect) followed by several flushes with fresh water, Remember rubber gloves and eye protection when using caustic. Caustic removes the fatty residue from the milk, chlorine removes proteins, and the acidic solution ( more often a combination of several acids, and not often HCl in my experience ) is there as a mineral deposit remover and also to drop the pH to bugger all to make it a very inhospitable place for bugs to live. Added to the acid mixture are surfactants etc. Not sure how well this mixture would clean the inside of a water tank, but I suspect that the chlorine and caustic solution would do pretty well if left to soak a wee while. We use 10g caustic soda and 10mls Sodium Hypochlorite per 10l of water in cowsheds. Go with a mix of 1% of each and you will have a fairly aggressive cleaning solution for organic compounds. Alternate option could be the tank cleaning mix from a chandlery. Quote Link to post Share on other sites
Guest Ketchup Posted September 6, 2015 Share Posted September 6, 2015 I very rarely clean my water tanks because i filter the water in (25 and 1micron) and filter out (1 micron and UV) and get 99.8% purity. Once a year (least used period)I put 1% chlorine in. Tanks tested 5 years and perfect. Quote Link to post Share on other sites
TeMPuS 2 Posted September 9, 2015 Share Posted September 9, 2015 we use sodium metabisulfate. its readily available at home brewing shops as its used to sanitize jugs etc before brewing of beer or wine. and its cheap! Quote Link to post Share on other sites
Chewing Gum 17 Posted September 12, 2015 Share Posted September 12, 2015 We have a simple activated carbon caravan filter and have never cleaned our stainless tanks and have no problem with tasty water. https://www.burnsco.co.nz/shop/shop/water-filter-hanmer-carbon Replace the carbon about every 3 years Quote Link to post Share on other sites
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