RO/DI System

[clowningaround]

I just got a new reef keeper RO/DI system from air, water& ice in florida. It says its supposed to make 75 gal. per day. I dont get 2 gal. out of it and it just trickles then stops. Am I braindead or is that not right?

[Etech]

put a ball valve on your waste water line and adjust it so your getting approxiamately a 3-1 ratio of bad water to good

[Etech]

also ckeck to make sure your getting enough line pressure for 75 gpd you will probably need something over 50 psi for your unit to work right.

[Big Dave]

I think it is your water pressure as well. My RO?DI unit has a gagfe on it and it reads 45-50 psi. Your 'good' water is going to trickle out or flow very slowly, that part is normal. My unit flows at a trickle on the verge of a steady flow. Can you check the pressure on your faucet? Also, another idea, my faucets in the house have 'eco-friendly' water saving constrictors on them, but my outside faucet has higher psi. Maybe check that??? That's all I can come up with...

-Big Dave

[mikeMersot]

I have the same unit, I get about 40-50 gpd, but my pressure is low and my tds levels are huge, around 700, i get more like a 10:1 rejection rate i would guess. A problem i had initially was that the pierce valve doesnt seem to make a large enough hole in vinyl tubing, I had to take the pierce valve off and open the hole up a little with a knife, after that I got better production. If you cant figure it out contact walter at air water ice, he is very helpful and will get you taken care of.

[mbty22]

This may sound dumb.......But why would you put a ball valve on the waste water side ?What does that accomplish?

[Etech]

But why would you put a ball valve on the waste water side ?What does that accomplish?

it creates more pressure on the membrane enabling it to produce more product.