Delaying on Soap Wash?

[SeanD]

My RO slowed down over the course of the afternoon to the point I decided to do a backwash and changed the filter. Performance is now slightly better, but still slow. So, it's time for a soap wash.

I only have about 150 gal of raw sap left for the day. I'm still getting 8-8.5% on a first pass and the permeate is still sugar free. So it's doing well, just slowly. Will I cause the membrane harm by letting it finish this raw sap at a slower rate then doing the soap wash at the end of the night or at least before the next boil?

[mellondome]

Finish what you have then wash. Monitor your pressure and keep it below manufacturer max ( both machine and membrane)

[Wanabe1972]

I had the same problem yesterday. I just open the recirculating valve a bit more and dropped for 8 percent to 7 and went to bed. There's not much difference when boiling 7 or 8. Then when I woke up to boil I gave it a good washing. Jeff