Hello Reefers,
I need some help. I've been eating up RO membranes for over a year. I'm on my 4th. All brand new, all Dow Filmtec. I flushed the sediment, carbon filters prior to hooking up to the RO membrane. All was working well had a rejection rate 0f 5 prior to DI. I produce about 60 gallons a week and all was good for the last three months. Last week it creeped up to 3 TDS then 7 this week. I disconnected the hose between the membrane and the DI and tested the water from the membrane. The reading is 108. Waste water shows 256. I changed the DI and I'm getting 0 TDS DI but I already know the DI will be exhausted in no time. As I said this will be the 4th Membrane since April of last year. Please tell me what can be causing this. What I'm doing wrong?
I need some help. I've been eating up RO membranes for over a year. I'm on my 4th. All brand new, all Dow Filmtec. I flushed the sediment, carbon filters prior to hooking up to the RO membrane. All was working well had a rejection rate 0f 5 prior to DI. I produce about 60 gallons a week and all was good for the last three months. Last week it creeped up to 3 TDS then 7 this week. I disconnected the hose between the membrane and the DI and tested the water from the membrane. The reading is 108. Waste water shows 256. I changed the DI and I'm getting 0 TDS DI but I already know the DI will be exhausted in no time. As I said this will be the 4th Membrane since April of last year. Please tell me what can be causing this. What I'm doing wrong?