[keyser soze]

interesting replies .. the membrane performs the same as when i first installed it . i have an online tds meter straight after the ro and again after the resin. and its never been any different . so can only presume it needs a boost.. the reason i asked is ive just acquired a second ro which is a good one and wondered if i could use it and would it work so i need not buy resin . i will try flushing for longer (good tip)

[Goldoak cleaning specialists]

anyway the orginal poster has stated he has quite low pressure? so it doesnt matter if you buy a new membrane or not..he its low pressure so its not going to bring it down as low as you are thinking. and BELIVE ME I KNOW because i have a pressure of a dismal 13 psi from my tap!

13 o my gaaaad. Thats low. Cnt u turn it up in the street stopcock?

[robert mitchell]

Tap water pressure is determined by how far you are from the nearest pumping station and the size of the water main , the street stop cock should be fully open .

[dave0123]

13 o my gaaaad. Thats low. Cnt u turn it up in the street stopcock?

My stop cock is fully open this has already been done many years ago. I probably would get a little bit better PSI if i moved the ro closer to the tap but i cant due to where its placed and where the underground pipe comes into the house, i was getting my ppm down to about 30 before a booster pump and now when running my pump at around 62 psi about 50/50 its runs smoothly at settles down to 17 last night out of the RO after running for a short while.

Its a real pain in the backside i know but there's not much i can do.. my next membrane will be a low pressure one obv but this has lasted quite a long time i am pleased.

[keyser soze]

so im after a cheap booster pump for a ro .. any links guys

[ben M]

when you flush the RO, do you have to flush the pre filters too?

[robert mitchell]

so im after a cheap booster pump for a ro .. any links guys

The one from lidl is a bargain and works well with a three year guarantee , might be a few left if your lucky as it was last week's offer.
50 quid