tank liners

[Nurse Julie]

Mick...I take it you are rinsing the tank out with de ionized water....not tap water 🤔🤔🤔

[mickwinf]

hi Julie, the initial cleaning was done with tap water, then after the de rusting the instructions say to allow to dry ( i used a hot air gun and compressed air ) and that the product protects from further rusting, haha. Why should i use de-ionised water?

[Nurse Julie]

Tap water reacts with the ions in it which causes corrosion. De ionized water has had the ions removed and is therefore a lot less corrosive than tap water......That, by the way is the 100% knowledge of ions in water 😀😀😀 🤣🤣🤣

[K2-K6]

You'll never get your sheets flat with an ion 

[Nurse Julie]

You'll never get your sheets flat with an ion 

That is sad Nigel 

[K2-K6]

It's a fair cop Julie.

I used to look after millions  of ions in commercial film processing with ion exchange columns etc. Industry jokes like that I'm afraid,  and not letting all the dark escape out of the darkroom,  oh what a laugh we had 

[Bryanj]

Cant understand it
Got me an i phone and the boy an i pad but my wife complained about the i ron



Slinks away slowly!

[Moorey]

It's the chlorine in tap water that's the main problem, but the free ions in tap water do react with metals and form oxides on the surface of the metal.  Chlorine been very corrosive is removed in a carbon bed before the water is run through the resin beds to make deionised water,  So a double plus with deionised water, no chlorine and far far fewer ions. Bulk produced deionised water does still have a few ions in it.
 Chlorine will evaporate out of tap water if left in a open container for a good week.
 Mouthwash is made with deionised water and I maintained the 10m3ph deioniser for over 10 years and that's a lot of deionised water at the factory I worked at.   

[royhall]

I can't understand why you would want to flush out any recently cleaned metal part with any type of water, that's just asking for trouble. I have always cleaned out my tanks with parrafin, is it something about the cleaner being used that specifically requires a water flush? If i'm storing the tank for an extended time I usually put 0.5lts of vegetable cooking oil in and give it a good swish around then empty the excess. I use cooking oil as it's very thin and clings to the sides of the tank. It's always worked for me, in fact I have a spare 750F2 tank thats been sitting after a clean out for 5 years and it's still spotless.

[mickwinf]

just to clarify after the de-rust process the instructions don't say to rinse out, just to drain and dry so that's what i have done. The product is supposed to stop re rusting but does not, nor does filling with diesel or oil seem to stop it!

[mickwinf]

so last try before i use the liner, i have received the phosphoric acid as recommended by Ash so will try when i have a little time.

[K2-K6]

It sounds counterintuitive to cause corrosion to prevent it corroding,  but that's exactly what anodized aluminium has been through.  Short controlled corrosion buildup which afterwards is resistant to oxidisation.

Be interesting to hear the outcome,  hopefully it'll give a positive result.

[mickwinf]

here are some pic of inside of tank tonight showing the rust that formed even though i put diesel and oil in it after de-rusting, it happened overnight.

[mickwinf]

now after about 90mins in the bio rust, will rinse out then use the phosphoric acid, any tips on using it anyone?

[jon stead]

now after about 90mins in the bio rust, will rinse out then use the phosphoric acid, any tips on using it anyone?

See Stage 3, page 4 on attached procedure in reply #23 on this thread