[dotty]

any help would be nice

[steven ainger]

Bit more info might help,
What type of ro
Is it new or old
 water pressure
Tds readings etc etc

[dotty]

its a new ro unit i have been told to buy a booster pump cause some 1 said the pressure in my area may not be that good does that effect the tds coming down ?

[Flash..]

Yes I had the same problem very low pressure here burnt out the carbon filter in the RO in couple of months you need a booster pump for sure unless you have around 5 bar water pressure? 

[dotty]

my water presure is 40 does that mine 4 bars and the ro have got is a 200 my td from tap is 300

[gto]

my water pressure is 50psi i think, and my first RO was slow.
but you should still be getting water through even at very very low psi.

i would start disconnecting pipes make sure that water is getting threw to each stage.

is there waste water coming out.

[dotty]

my pure water is running slow but my waste water is running fast does that make a diffrence ?

[gto]

thats how it should be (sort of)

you should have a flush tap, make sure its not fully open.
also get yourself a measuring jug, and time the out put of the pure and waste.