RO/di machine headache

[Craigdillman]

Hey guys just messing around changing my prefilters and trying to diagnose low production with my machine again had some questions ( I'm thinking my membrane needs to be replaced )

How much does your machine actually produce ?
How many drops a second do you get straight from your membrane before Di?
What's your waste water ratio?

It's a aquasafe Canada setup and have a booster pump on it now and have the upgraded BRS duel di resin containers, i believe it's a 100g a day membrane and I'm lucky to get like 10g now. I was behind in changing the prefilters so I attributed it to the pre filters clogged but Ive had problems with this thing before and am close to blowing it up

Right my pressure going to the membrane is 120psi and in getting approx 1 drip a second out of the membrane and the waste water is like free flowing (not a 4:1 ratio) but I got the flow restrictive it came with cranked as low as it can go
Also not getting my 85-96-% rejection rate

Is this the signs that my membrane is shot and would that slow my production to a halt or you think something else is at work