[Stephen burton]

Hi guys
I have a streamline 300 gpd ro which has decided to produce very slow, I use to get about a 1000 litres a day with a booster pump, I moved my ro into a lock up which has the same pressure so was producing roughly the same in a day, after 2 weeks I’m now only getting 200 litres a day, I have tested everything, I’m getting really good pressure after the booster pump but once it goes through the membrane it dribbles out, is this the case of the membrane being knackered or maybe blocked, the membrane is 6 months old and same with the pre filters I only normally produce about 1500 a week at most. Anyone else had this issue before?

[Slash]

Check the flush valve.

[AuRavelling79]

Depends how much use they've had but I'd look at changing the pre-filters before changing  the membranes.

I think a set is only about £12  and they normally need replacing more frequently than membranes.