Hello R2R, I have two 75 gpd membranes on my RO unit. It's been making 0 TDS water for over 14 months. I'm wanting to be proactive & buy new membranes so I'm ready when they need replaced. I'm back in the hobby after a long absence & I remember changing my membrane about every year or so back in the day.
Details of my entire RO system. It's a BRS 75 gpd unit with one sediment, 2 carbon blocks, 75 gpd upgrade kit (second membrane), triple DI saver upgrade kit, and one extra mixed bed DI chamber at the end that I DIY'ed from my old ro unit. I have a booster pump as well. The pressure on the guage shows 82 when it's running. I have a thermostatic valve plumbed in so it keeps the water entering the ro unit at 77 degrees and it fills my 55g barrel in 5.5 hrs.
So far, when the TDS meter shows 1, I've changed carbon blocks and/or DI and it goes back to 0. I change the sediment when it starts looking dirty which is about every 6-8 weeks. How do I know when the membranes are shot? Or is it just a "change them out after a certain amount of time" thing? Can I put in 100 gpd membranes without issue, or is there anything else I need to do or purchase? I do flush it for 3-5 minutes before & after each use.
Details of my entire RO system. It's a BRS 75 gpd unit with one sediment, 2 carbon blocks, 75 gpd upgrade kit (second membrane), triple DI saver upgrade kit, and one extra mixed bed DI chamber at the end that I DIY'ed from my old ro unit. I have a booster pump as well. The pressure on the guage shows 82 when it's running. I have a thermostatic valve plumbed in so it keeps the water entering the ro unit at 77 degrees and it fills my 55g barrel in 5.5 hrs.
So far, when the TDS meter shows 1, I've changed carbon blocks and/or DI and it goes back to 0. I change the sediment when it starts looking dirty which is about every 6-8 weeks. How do I know when the membranes are shot? Or is it just a "change them out after a certain amount of time" thing? Can I put in 100 gpd membranes without issue, or is there anything else I need to do or purchase? I do flush it for 3-5 minutes before & after each use.
