New homemade RO how do I clean the RO filter

[sebastian]

I just built a RO I have a little experience in using one. It started off great and took out the water at a fast rate and then slowly turn to a trickle. Even when I was ROIng new sap. I think I need to clean Ro can anybody tell me how that's done. 15537

[Greensprings sugar]

Start with warm permeate water for 5 min, then rinse with permeate for 10 min if that doesn't work will have to soap wash, Ifor still having problems acid wash will work then flush with permeate for 10 to 15 min to flush everything! Every membrane is washed a little different though not knowing your brand

[Bricklayer]

Can I ask what the copper line going from the Procon output to the membrane feed line is?

[sebastian]

I is a 1/2 copper line . The line coming from above into the Tee id a re-circulation line I seen on one of the designs one maple trader

[sebastian]

The membrane is a
Dow Filmtec XLE-4040 Extra Low Energy Commercial RO Membrane
So i run the permeate is the same supply line that the sap come in ?
How warm should the permeate water be ?
Were do i fine the soap wash and acid wash?
Thank you for your help !

[mkoehler79]

The recirculate line needs to go to the input (low pressure) side of the procon. The way you have it, the SAP will not recirculate as there is nearly equal pressure across the recirc valve.

[Bricklayer]

Your pressures will be fighting each other with that recirc line run the way it is. And once pressure equalizes it will just blow raw sap right past the membrane altogether. The way you have it is that your Procon is feeding both ends of the membrane. Not good. . You absolutely need to switch that line to tee into the input of the Procon not the output. You could be buying a new membrane soon if you run it like that.

http://i1070.photobucket.com/albums/u495/bottenhof/Mobile%20Uploads/2017-02/38F86783-D572-449B-A906-993258DDC489_zps4s6zrum6.jpg (http://s1070.photobucket.com/user/bottenhof/media/Mobile%20Uploads/2017-02/38F86783-D572-449B-A906-993258DDC489_zps4s6zrum6.jpg.html)

[jmayerl]

Call the manufacturer and asked there advise.....

[OGDENS SUGAR BUSH]

The membrane is a
Dow Filmtec XLE-4040 Extra Low Energy Commercial RO Membrane
So i run the permeate is the same supply line that the sap come in ?
How warm should the permeate water be ?
Were do i fine the soap wash and acid wash?
Thank you for your help !
110 degrees wash water, soap wash= sodium hydroxide at PH11 wash 1/2 hr rinse with 100/120 gal of permeate
I acid wash mine at the end of season citric acid at ph2 same rinse as soap

[sebastian]

Thank you for your help
What flow rate should i see out of the concentrate line ?

[sebastian]

Thank you for your help