Other Stuff > Misc / Open
tank de-rust
mickwinf:
Thanks for replies, i have tried these methods, the only difference to Julies was i used tap water to flush not distilled. Has diesel in at the moment and has rusted again.
K2-K6:
You could try a rinse with a bi carbonate of soda straight after a water wash as it should neutralise any remaining acid to help prevent flash rusting and see what you get.
Don't put the bi carbonate in straight after acid, rinse first then go in with bi carbonate wash.
K2-K6:
Washing Soda crystals or household bleach are heading up the ph scale if you want to asses the affects of bringing it more alkaline with easily available chemicals.
Sodium hydroxide "drain cleaner" is further out on the scale too.
Kelly E:
I use EvapoRust and rinse with diesel. The last thing I am going to put in a freshly derusted tank is water. When you dump out the diesel into a jug let the sludge settle and pour the diesel back into the tank for another round of rinsing. I rinse at least 4 or 5 times. Never have had any flash rust with this method. The diesel can be used over and over again. Just keep pouring off the clean diesel and dump the sludge.
Nurse Julie:
--- Quote from: Kelly E on August 03, 2021, 06:45:59 PM ---I use EvapoRust and rinse with diesel. The last thing I am going to put in a freshly derusted tank is water. When you dump out the diesel into a jug let the sludge settle and pour the diesel back into the tank for another round of rinsing. I rinse at least 4 or 5 times. Never have had any flash rust with this method. The diesel can be used over and over again. Just keep pouring off the clean diesel and dump the sludge.
--- End quote ---
De Ionised water is just fine, it's very cheap, readily available and prevents flash rusting. Then swill round with diesel.
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