RO unit questions

dudleystinks · 01/29/2008, 04:56 AM

Im looking into buying an ro unit. I would like to know how often everything should be replaced. I have noticed the membranes in perticular are very expenisive almost the price of a brand new unit.

Thanks all

bmk · 01/29/2008, 06:14 AM

Hi
I change the pre filters (sediment/carbon) every 6 months, change the DI resin when tds reading goes above 0. The membranes are good for about 5 years depending on usage. Get a unit that has a 'flush' valve so the membrane can be flushed (once a week for 10min).

Barry

dudleystinks · 01/29/2008, 07:04 AM

ahh your from england like me! What did you spend for your unit? I have seen prices ranging from anwhere between Â£60 and Â£300. Also does it matter about brands?

I was just looking at this one as its cheap will it do the job?

http://cgi.ebay.co.uk/3-STAGE-50-GPD...QQcmdZViewItem

bmk · 01/29/2008, 09:24 AM

Hi
This is the place to get them from http://www.ro-man.com/shop/index.php I bought the 50gpd 4 stage unit (RO/DI) for Â£74. They do a filter 'kit' when changing filters for less than Â£20, it includes sediment/carbon filters and 1litre of DI resin. I have had mine for a year now and can't fault it. It also has a 'flush system' for flushing the membrane which is recommended 10min once a week (saves the membrane so you should get 5 years out of it).

Hope this helps.

Barry

01/29/2008, 04:56 AM	#1
dudleystinks Registered Member Join Date: Jan 2004 Posts: 33	RO unit questions Im looking into buying an ro unit. I would like to know how often everything should be replaced. I have noticed the membranes in perticular are very expenisive almost the price of a brand new unit. Thanks all

01/29/2008, 06:14 AM	#2
bmk Registered Member Join Date: Apr 2007 Location: England Posts: 278	Hi I change the pre filters (sediment/carbon) every 6 months, change the DI resin when tds reading goes above 0. The membranes are good for about 5 years depending on usage. Get a unit that has a 'flush' valve so the membrane can be flushed (once a week for 10min). Barry

01/29/2008, 07:04 AM	#3
dudleystinks Registered Member Join Date: Jan 2004 Posts: 33	ahh your from england like me! What did you spend for your unit? I have seen prices ranging from anwhere between Â£60 and Â£300. Also does it matter about brands? I was just looking at this one as its cheap will it do the job? http://cgi.ebay.co.uk/3-STAGE-50-GPD...QQcmdZViewItem

01/29/2008, 09:24 AM	#4
bmk Registered Member Join Date: Apr 2007 Location: England Posts: 278	Hi This is the place to get them from http://www.ro-man.com/shop/index.php I bought the 50gpd 4 stage unit (RO/DI) for Â£74. They do a filter 'kit' when changing filters for less than Â£20, it includes sediment/carbon filters and 1litre of DI resin. I have had mine for a year now and can't fault it. It also has a 'flush system' for flushing the membrane which is recommended 10min once a week (saves the membrane so you should get 5 years out of it). Hope this helps. Barry