RO/DI Troubles

[Rcpilot]

I just hooked up my brandy new RO/DI unit and I can't get but a trickle of water out of it.

Got a supply line hooked up under the sink. It has a shut-off valve. Then it runs into the RO unit. Got the drain line plumbed.

The only thing I can think of that I did was I put a 25' piece of tubing on the discharge side. I did that so I could run the thumb valve over to the tank and top off every morning.

I can't see that making a difference though.

Do these things need to break in? Will it loosen up and flow better after a put 10 or 20g through it?



Thanks for any suggestions.

Oh, duuh! Might help if ya knew what unit I was dealing with:
Filter Direct Online Store (C)

[AQTCJAK]

what is your water pressure like?

there brand requires 60 PSI to work properly

[vdituri]

I didn't get that brand, but mine seemed to go through a break in period. Same exact thing. After a couple buckets it picked the pace.

[AQTCJAK]

check to ensure you have water from every point of the system after the 3 intial cansters, the membrane, the di's more than likely it is the check valve on the membrane I had a customer that had abad valve I removed it & it wok great after that

[Rcpilot]

I have no idea what my water pressure is.

I changed out the 25' line for the factory tubing. It's 4' long. No change in flow.

There is a valve after the RC unit. It is in between the RC unit and the DI canisters.

There is also a "filter" on the drain line.

I'm getting a lot of bubbles in the system. Bubbles squirting out the drain line. Bubbles in the outlet tube. Bubbles in the DI canisters.

[Rcpilot]

Originally Posted by AQTCJAK

check to ensure you have water from every point of the system after the 3 intial cansters, the membrane, the di's more than likely it is the check valve on the membrane I had a customer that had abad valve I removed it & it wok great after that

Good idea!! I'll start cracking fittings and see if I'm getting flow at all points in the system.

Thanks

[Rcpilot]

The restriction in in the RO unit.

I have awesome flow through the 3 filters on the bottom. Good filter through the valve and into the RO unit. But coming out the downstream side of the RO unit--it's nothing but a trickel.

Looks like I'm going to have to figure out a way to boost my water pressure. Not gonna be easy, considering I live in an apartment.

Any ideas?

[AQTCJAK]

Call OScar @ Filter Direct & get the booster pump from him the part number is W751 telephone Number 800-934-1031. Tell Oscar that Jack from Aquatic Aggression told you to call

[Rcpilot]

Thanks Jack. I will do that.

Nice website ya got there.

[Triggerjay]

I have a pressure tank on my RO/DI side, so I have 4g on hand at any given time. But when the pressure tank is empty, all I get is a trickle.. But surprisingly, that trickle will make around 100g a day. Sounds normal to me compared to mine. Mine is an Aquasafe Systems 6 stage w/pressure tank and faucet. My city water runs 75psi.

Jason

[AQTCJAK]

Originally Posted by Rcpilot

Thanks Jack. I will do that.

Nice website ya got there.

Thanks it will be changing as soon a Vicki gets around to after I complete the graphics

[Woodstock]

The output after the membrane will be slow unless you have a booster pump and/or dual membranes. The ratio for clean/rejected water is 4-1 so for every 1 gallon of 'good water' you have 4 gallons of 'waste water'. Colder water will slow down production also but be careful because warm water can damage the membrane! It takes my unit 8-9 hours to make a trash can full of clean water

As always, check out our sponsors for needed corals or drygoods. They help keep our site going

I am considering dual membranes to help conserve water. Here are some test results from thefilterguys.biz that show how using dual membranes with a booster pump help to reduce wasted water: Water Saver Test Results

[BigAl07]

My new system was shockingly slow for a few gallons and then it just got faster on it's on. With that said, it still "looks" slow if I am watching it. I have a 100gpd system and I can see where it really WOULD take all 24 hours to make that much. It's just a FAST trickle at it's best but once you start filling jugs up it's faster than it appears (hence the wet floor last night when I left it filling a 5g pail and forgot).

Allen

[KodiakBear]

Mine is just a wimpy Culligan system. It's rated at 25 gal/day, so when my pressure tank is empty it will only gives me a few drops/second.

[lcstorc]

We just got a monstrous unit from AquaFx as a raffle prize at MACNA. We needed a new unit but this thing is huge so we are going to have to figure out a new way of operating. Should be a lot easier in the long run though.
I never thought about a booster pump. I may have to get one now.
Thanks for the tip.