Good evening, all!

I personally would be very sceptical, indeed, of ANY w/s mask in a 
closed loop system. It is asking for reduced lifetime of carbon and/or 
DI columns. I would suggest open loop pre-cleaning and use the closed 
loop just to polish off. Alternatively, a membrane microfilter before 
the first column, but this will require frequent backwash de-clogging.

Brian

On 17.05.2013 16:08, Steve Gregory wrote:
> Morning all,
>
> Continuing on with the masking thread, I know Techspray has a water soluble mask that is supposed to be compatible with closed-loop water treatment systems, are there any others out there?
>
> Any pros/cons of using them?
>
> As always, thanks in advance!
>
> Steve
>
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