[heath verrall]

I tested a pre filter the 5 micron that is supposed to remove chlorine & inpurities from water,

tds going was 380 / tds going out 380 ??

what a waste of money that was

[Don Kee]

I didnt think prefilter lowered tds?
Just there to protect membranes....

[heath verrall]

it says on the label

function to remove chlorine, inpurities, and dust in the water
application first stage in purifier

[Tom White]

I've never tested a pre-filter before Midsy; have you?  I mean have you anything to compare the one you tested with?

[heath verrall]

Hi Toshy

No ive not tested against any other , I just wanted to see if it would make a difference. and it don't.

you would think it would bring the tds down a bit

[Smudger]

It may be removing items larger than 5 micron, but that's not to say your water has items larger than 5 microns therefore your TDS will remain the same to see any effect on TDS you would need 1 micron filters

Did you test to see if chorine was removed?

Darran

[[GQC] Tim]

I tested a pre filter the 5 micron that is supposed to remove chlorine & inpurities from water,

tds going was 380 / tds going out 380 ??

what a waste of money that was

pre-filters do not lower tds.

[heath verrall]

It may be removing items larger than 5 micron, but that's not to say your water has items larger than 5 microns therefore your TDS will remain the same to see any effect on TDS you would need 1 micron filters

Did you test to see if chorine was removed?

how do i do that

Darran

[rosskesava]

TDS means Total Dissolved Solids.

I could be wrong but my understanding is that not all solids are dissolved and anything larger than 5 microns isn't dissolved, as it's in suspension in the water, so the tds wouldn't go down. Also, solids larger than 5 microns could clog up the ro filters. Hence the reason for a sediment filter.

[robert mitchell]

The above is 100% correct , dissolved solids are not affected by the sediment filter.
The main reason for a sediment filter is to stop tbe carbon filter being blocked up before it stops removing chlorine to  extend filter life .

[Smudger]

You would need to buy a testing kit

Most likely an aquarium supplier but I wouldn't worry about it as the carbon filter takes care of chorine

Darran

[dd]

Surely chlorine is a dissolved solid.

[robert mitchell]

I stand corrected , chlorine is a dissolved solid .

[Ian Lancaster]

I stand corrected , chlorine is a dissolved solid .

Chlorine is a gas.

Used in first world war as a weapon.  It dissolves in water just like oxygen does.

So no, it's not a dissolved solid.

[Fin Clearview]

This is like an A level science lesson..not that I took it of course!

[heath verrall]

so what's the conclusion on the filter ?? is it a rip off?

[Smudger]

Would have thought it's okay

Darran

[Don Kee]

Chlorine isnt a dissolved solid so your tds wouldnt go down. Tds only measures the solids.
As ian has said chlorine is a gas dissolved in water (just like oxygen)but it would harm your membranes so the prefilters are there to protect your membranes

[G Griffin]

so what's the conclusion on the filter ?? is it a rip off?

No.
Keep it in case the First World War starts again.

[heath verrall]