Strange effect with sea water...

[gazzzwp]

I filled my cell with sea water - switched on my PWM - got approx the same level of gas as tap water - left the cell for 10mins - came back and this was the result.

Accelerated algae formation?  I have no idea - a murky green substance that disolved in the water.

Didn't drink it.

Still getting that light brown scum using tap water - has anyone established what it is yet?

Gazza

[Jokker]

It is chemical reaction ... iron maybe 

[Aka]

I get a similar colour from tap water and salt with certain stainless rods I have(I dont know what grade stainless as they were from scrap)... if you leave the water for half an hour or so does it settle or change colour?

when I first started with hho designs I wanted to test if letting the scum settle then filtering off the clear water would make any difference but when I tried the clear water got dirty again just as quick

I concluded that the stainless was of low grade and had some other metal like copper or iron reacting and mixing with the water

[Sprocket]

I'd be wary of using anything that would create that much gunk.  I posted pics. on another thread of what my tap-water (which tastes fine) does to SS - same amount of gunk produced, but completely dissolves it in no time!  I'd love to know what chemical reaction is causing that.

It would be a shame if your nice cell suffered a similar fate...