bluereefs
New member
RO is made by DD EU Company but membranes inside particulary main osmosis membrane are made in USA so maybe someone here had similar issue or Know what can made this weird problem.
my osmosis stop to produce the water after 2-3 month of usage, First time when I noticed the problem I checked every conection, pipes, hoses ... if they are cloged somehow but everything look normal, changed all prefilters and membranes work ok and 2-3 months latter same issue, pure water go very slowly /drop by drop/ waste water goes full /ratio is somewhere 200:1 liter of pure water lol/ ... and then water production stop completly no waste watter no pure water, like is cloged.
I checked everything because there is no way that my prefilters are clogged , they look brand new, sediment filter is still clear white , no sign of waste or sedimentation anywhere in prefilters.... it simply look as membranes are defective and just stop the water production.
Yesterday I buy brand new membranes 75 gpd from USA /Filmtec I think/ change the mebmranes, actualy change complete filter part because I can not open damn chamber to remove the old mebranes and put new so I change everything. And now this new membrane produce the water but only pure water, there is no a single drop of waste water??? How to heck that is posible?
TDS of my source water is 135 tds and pure water is 13 so new membranes work somehow but i do not think it will work for long without waste water?
My presure is very strong, do not have booster pump but after using ro on that tap water conection for years I do not think there is the problem, water what I have is very clear , straight from mountain, one of the cleanest water source on the planet. My sediment filter look brand new, is like I put him in RO yesterday, no sign of sediment or trash
In 4-5 months this is 3 batch of membranes what i change and second batch of prefilters, I made about 20-40 liters Daily just mostly for top of water in reef- marine aquariums so there is no way that i exhaust 3 75 gpd mebmranes in 5 months
For me it look like there are some issue with those batch of membranes and they get "damaged" after very short time.
Any one have similar problem or heard about similar situation?
my osmosis stop to produce the water after 2-3 month of usage, First time when I noticed the problem I checked every conection, pipes, hoses ... if they are cloged somehow but everything look normal, changed all prefilters and membranes work ok and 2-3 months latter same issue, pure water go very slowly /drop by drop/ waste water goes full /ratio is somewhere 200:1 liter of pure water lol/ ... and then water production stop completly no waste watter no pure water, like is cloged.
I checked everything because there is no way that my prefilters are clogged , they look brand new, sediment filter is still clear white , no sign of waste or sedimentation anywhere in prefilters.... it simply look as membranes are defective and just stop the water production.
Yesterday I buy brand new membranes 75 gpd from USA /Filmtec I think/ change the mebmranes, actualy change complete filter part because I can not open damn chamber to remove the old mebranes and put new so I change everything. And now this new membrane produce the water but only pure water, there is no a single drop of waste water??? How to heck that is posible?
TDS of my source water is 135 tds and pure water is 13 so new membranes work somehow but i do not think it will work for long without waste water?
My presure is very strong, do not have booster pump but after using ro on that tap water conection for years I do not think there is the problem, water what I have is very clear , straight from mountain, one of the cleanest water source on the planet. My sediment filter look brand new, is like I put him in RO yesterday, no sign of sediment or trash
In 4-5 months this is 3 batch of membranes what i change and second batch of prefilters, I made about 20-40 liters Daily just mostly for top of water in reef- marine aquariums so there is no way that i exhaust 3 75 gpd mebmranes in 5 months
For me it look like there are some issue with those batch of membranes and they get "damaged" after very short time.
Any one have similar problem or heard about similar situation?
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