Up early & tried rinsing. Now down to 22 & 10 after DI. Am flushing currently but not hopeful that I can get it to a usable level.
Christopher, are you saying the membranes could be the cause?
not really Steve, you only really use a RO to drop the TDS so the resin lasts longer. came across a rough rule of thumb with resin.
1 ltr of resin will take 20000 ppm before saturation, so if water is say 20 1 ltr resin should give 1000 ltr water before duff. but the more resin in vessel the more you can squeeze out!
if using one of the 10" housings with insert they hold about 0.75 ltr so @ 10 ppm should last about 1500 ltr
now those 10" housing inserts, there are 2 types one is rigid and the other more like a plastic bottle, you can squeeze in the sides!
in past I have found the latter type a right pain as they can deform slightly when you put it in the housing even when filled with resin. this can cause a slight leak through so your 22 ppm water after the ro could mix with the pure coming through the resin.
if all else fails get a small 11 ltr resin vessel and run it through that you could run the tap straight through that and still get 000. and if your putting 20 ppm through thats 11000 ltr plus before change.
and before I forget if using 20 ppm to clean windows you will go through a hell of a lot of water and still not get them done, and a piece of useless info rain water is on average 38 ppm!