RO DI questions

[Milad]

So i just hooked up this RO/DI unit but the water coming out is SOO SLOW
its suppose to do 100g a day but its just dripping out
also if i turned down the discharge it speeds up.

is there some page on how to "tune" this thing? is it suppose to be this slow?

[intarsiabox]

New membranes are always much slower than their rated GPD but it will pick up after a couple of days worth of running time. If it makes you feel better the slower it goes through the membrane usually means it is being filtered better. My unit suggests discarding the first 20 or so gallons of water with a new membrane as there will be some manufacturing residue in the first bit of water. As for tuning I just open the tap full blast and let it go. I have a 60GPD unit and even with full pressure it has a hard time getting the rated 60 GPD.

[kien]

even after it has "broken in" your RO unit will seem painfully slow.. drip drip drip.. and you will notice that it discharges A LOT more waste than usable water, unfortunately.. that's just the nature of the beast. This is where a reservoir comes in handy. Make up like 100g at a time. Turn off RO unit. Use up the 100g then make more.

Not sure if yours has an auto-shutoff or not but if it does I would not rely on it 100% of the time as it will likely reduce the life of your membrane. Instead, as suggested above, make up a batch then completely shut off the feed water to the whole unit while not in use.

[hillegom]

Also don't forget 100 gpd works out to about 4 gals per hour. Temperature also affects output, the colder, the slower the water goes through the membrane

[Milad]

this thing is like drip drip drip drip, my faucet drips faster than this, seesh. im gonna have to put teh 3gallon tank on this bad boy

[intarsiabox]

I am thankfull for the drip, drip, drip rate. I don't have an auto shut off valve on my unit and I woke up at 3 am one morning thinking "Oh, crap!" I raced downstairs to find a large pool of water on the floor and ended up spending an hour with the wet vac. If the water came out faster I would really have been screwed! I still don't have an automatic time but I now use a kitchen time and set it to go off every 2 hours before I turn the tap on. I would like to say I only did this once and learned from my mistakes...

[Albertan22]

Forgive me for being blunt, but everything in this hobby is slow and expensive...