Had my 4040 a few weeks but cos of freezing temps and booster pump setting up only just today got it all set up and working.
Does this sound about right for the TDS ??
tap tds = 255 and after 4040ro before di vessel its 17 - 19 tds ??
flushed it for a good 2 hours.
Ian, the important thing to know is what pressure is your booster pump giving you? I see the link you put up for that booster pump and to be honest its not one i'd of looked at. I was concerned by its kick in pressure and the fact you can't adjust it. In general terms thats the sort of TDS i would expect from low pressure of 50 psi or lower. If the pressure is as high as 80PSI or more then i'd expect that your output TDS is a little high.
Hi Mike ... psi goes up to about 90 then slowly drops to 50psi before pump senses the drop and kicks back in so yup possibly not the best pump to have bought but can now do 1000 litres in 20 hours where before it was taking 4 days
... will have to do for now as not buying another pump :
(skint) .... Andy -S- suggested removing the pressure sensor so when I outgrow the production will take a look at doing that