Hi Everyone ?
I was wondering if anyone can point me in the right direction on how to diagnose why my static 4040 system as it is under performing at 93% efficiency.
I have a static DIY 4040 system from Vyair, owned for last 3 years. I have changed the RO membrane every year as advised by Vyair (Although now reading through this forum I can see I don't need to do that ?) and changed the pre filters every 6 months. My water pressure was 35 - 40psi with TDS of 280 after pre filters, RO producing 008. This was for the first 2 years and 2 membranes. No problems.
At this point current membrane from Vyair is STARAY TB-HF-4040 and standard 3 stage 20" pre-filters from Vyair.
Year 3 I moved house twice. I had not changed the pre-filters start of year 3. First house had low tap pressure between 28-30psi, TDS after pre filters I think around 375. Membrane output of 12. However over the next 5 months the membranes output raised from 12 - 25. At this point I had not changed the pre-filters for roughly 12 months. So I assume membrane TDS is rising due to low pressure and pre-filters maybe ruining the membrane?
At this point I move house again and new tap pressure is 45-50psi and TDS before pre filters fluctuates between 420 - 480 (changes day by day). Membrane TDS output is 035 now (I imagine because the tap TDS is so high). So I order a new 4040 XLE membrane from Wintec this time as it's cheaper.
I ordered new pre filters from Vyair. (Their Website had been updated since I last ordered and not sure what pre-filters to buy). Includes 1st Stage 5 Micron Particle Filter. 2nd Stage Carbon Media - chlorine reduction. 3rd Stage Carbon Block - Chloramine & HMA Removal.
I flush the system well when setting it up as I have done with previous 2 membranes and filters. TDS has not changed after pre-filters, still around 430ppm . Membrane after hours and hours of flushing is producing 044ppm!!! After researching on this forum I notice that some membranes will improve over time, after 2 weeks TDS dropped to 33tds.
Another fix I found was to replace the seals in the RO caps as waste water could be leaking and mixing with pure. So orderd seals from Vyair and no improvement still 033ppm.
I decided to buy a booster pump, bought a Clarke 1200SS which boosted pressure upto 80-85 PSI. This did reduce the TDS but only to 025. Still too high.
I contacted Wintec and turns out they sent me the wrong membrane. So I received new membrane on Friday it's Flotec ULP-4040. I think this is the XLE equivalent?
Tonight I have installed new membrane and after flushing for 2 hours, the membrane is producing 034ppm... Pressure at membrane has dropped to 70psi, not too sure why but I would say it's still sufficient.
I'm a bit stumped at what to do next? I can't understand why the TDS is so high after membrane. I haven't changed any of the hoses or pipes, only thing that has changed on the system is membranes and pre-filters.
I've scratching my head at what to do next? What could be causing the high TDS output? I will be contacting Wintec tomorrow about results from new membrane.
Could it be something in the water the pre-filters and membrane are not filtering out?
Any advice is much appreciated, thank you all ??
I was wondering if anyone can point me in the right direction on how to diagnose why my static 4040 system as it is under performing at 93% efficiency.
I have a static DIY 4040 system from Vyair, owned for last 3 years. I have changed the RO membrane every year as advised by Vyair (Although now reading through this forum I can see I don't need to do that ?) and changed the pre filters every 6 months. My water pressure was 35 - 40psi with TDS of 280 after pre filters, RO producing 008. This was for the first 2 years and 2 membranes. No problems.
At this point current membrane from Vyair is STARAY TB-HF-4040 and standard 3 stage 20" pre-filters from Vyair.
Year 3 I moved house twice. I had not changed the pre-filters start of year 3. First house had low tap pressure between 28-30psi, TDS after pre filters I think around 375. Membrane output of 12. However over the next 5 months the membranes output raised from 12 - 25. At this point I had not changed the pre-filters for roughly 12 months. So I assume membrane TDS is rising due to low pressure and pre-filters maybe ruining the membrane?
At this point I move house again and new tap pressure is 45-50psi and TDS before pre filters fluctuates between 420 - 480 (changes day by day). Membrane TDS output is 035 now (I imagine because the tap TDS is so high). So I order a new 4040 XLE membrane from Wintec this time as it's cheaper.
I ordered new pre filters from Vyair. (Their Website had been updated since I last ordered and not sure what pre-filters to buy). Includes 1st Stage 5 Micron Particle Filter. 2nd Stage Carbon Media - chlorine reduction. 3rd Stage Carbon Block - Chloramine & HMA Removal.
I flush the system well when setting it up as I have done with previous 2 membranes and filters. TDS has not changed after pre-filters, still around 430ppm . Membrane after hours and hours of flushing is producing 044ppm!!! After researching on this forum I notice that some membranes will improve over time, after 2 weeks TDS dropped to 33tds.
Another fix I found was to replace the seals in the RO caps as waste water could be leaking and mixing with pure. So orderd seals from Vyair and no improvement still 033ppm.
I decided to buy a booster pump, bought a Clarke 1200SS which boosted pressure upto 80-85 PSI. This did reduce the TDS but only to 025. Still too high.
I contacted Wintec and turns out they sent me the wrong membrane. So I received new membrane on Friday it's Flotec ULP-4040. I think this is the XLE equivalent?
Tonight I have installed new membrane and after flushing for 2 hours, the membrane is producing 034ppm... Pressure at membrane has dropped to 70psi, not too sure why but I would say it's still sufficient.
I'm a bit stumped at what to do next? I can't understand why the TDS is so high after membrane. I haven't changed any of the hoses or pipes, only thing that has changed on the system is membranes and pre-filters.
I've scratching my head at what to do next? What could be causing the high TDS output? I will be contacting Wintec tomorrow about results from new membrane.
Could it be something in the water the pre-filters and membrane are not filtering out?
Any advice is much appreciated, thank you all ??