[james nicholson]

hi how easy is it to add another membrane housing and membrane to an existing ro system want to upgrade mine
thanks

[steven ainger]

Its easy,
Get a pair of membrane mounting brackets ( so the membranes sit ontop of each other )
Another housing & a membrane, the waste from the first membrane goes into the feed of the next and so on.
Then all the product pipes from each membrane join in a single product pipe.
Hope that makes sense, if not, look on the Ro-man site & theres a diagram to show you how to do it

[james nicholson]

thanks for reply.....all my tubing is white not red and blue for easy idntification.....so ok if i take the waste from the second membrane which would go down drain pipe {pipe with flush swith on it?}connect that to feed on new membrane connect waste from new membrane to drain  then tee into product pipe for product water?cant find diagram on ro man site
thanks

[steven ainger]

see if this helps

http://www.ro-man.com/shop/index.php?route=product/product&path=22_93&product_id=2168

the waste from no1 feeds no2 etc then all the product is Teed together

[james nicholson]

cheers i think i get it now will have a look at mine later

[p1w1]

depending on what system you have you will more then likely need to change your flow restrictor as well.

[james nicholson]

its pure freedom one?cant see any flow restrictors on their site anybody know if needs changing?

[p1w1]

Best thing to do is give them a ring mate,  if you have a flow restrictor fitted it will be connected to the waste pipe outlet or it may just be a tap to adjust all depends on how your system is set up.

[james nicholson]

cheers mate will ring them in morning

[craig21t]

its pure freedom one?cant see any flow restrictors on their site anybody know if needs changing?

If the new membrane you buy is the same gpd you will not need to change the flow restrictor.
eg if you already have 2 x 100gpd membranes in, as long as the additional one is 100gpd, you do not need to change the restrictor.

[Spruce]

its pure freedom one?cant see any flow restrictors on their site anybody know if needs changing?

If the new membrane you buy is the same gpd you will not need to change the flow restrictor.
eg if you already have 2 x 100gpd membranes in, as long as the additional one is 100gpd, you do not need to change the restrictor.

They do 'wear' out so RoMan always recommend you replace them. The restrictor hole will get fractionally bigger so this will change you waste to pure ratio. Its only hard plastic.

For those on a meter the small cost of replacing a restrictor will pay for itself.

In the spraygun industry we used to see worn spray gun air nozzels in the air caps. This occurred even when the air had been filtered and the moisture taken out of it.

There will always be microscopic particles that get through the filters and travelling at speed will cause some abrasion.