Flow restrictor and check valve question

labragg1 · 07/19/2007, 07:54 AM

Just got my order from you for the new round of cartridges and DI for my Filter Direct and the Coralife rodi units.

Everything arrived in perfect condition--thanks.

Two quick questions:

1. The Coralife unit was a 50gpd unit, but it did not have any sort of flow restrictor--what kind of problems would that cause?
Note--when i ordered the new round of cartridges and membrane from you I got one of your matching flow restrictors--so it has one now. I was just curious why Coralife didn't ship the unit with one to begin with?

2. On the Filter Direct unit I can't really tell if the fitting coming out of the membrane housing is a check valve or not--they two fitting on that end of the housing look the same. Should I just add a BFS 112, or is the BFS 243 required?
Also, if the current fitting does happen to be a check valve--would adding the BFS 112 cause a problem as I would then have two check valves?

Thanks so much for all your help.

I left you guys some feedback in the vendor area.

BuckeyeFS · 07/19/2007, 06:08 PM

Quote:

1. The Coralife unit was a 50gpd unit, but it did not have any sort of flow restrictor--what kind of problems would that cause? Note--when i ordered the new round of cartridges and membrane from you I got one of your matching flow restrictors--so it has one now. I was just curious why Coralife didn't ship the unit with one to begin with?

If it didn't have a flow restrictor it wouldn't have produced any purified water. It is the flow restrictor that causes pressure to build in the RO membrane housing - which in turn causes water to go through the membrane. Can't imagine they would ship it w/o a flow restrictor? Are you sure you don't have two in place now? What is your waste to purified water ratio?

Quote:

2. On the Filter Direct unit I can't really tell if the fitting coming out of the membrane housing is a check valve or not--they two fitting on that end of the housing look the same. Should I just add a BFS 112, or is the BFS 243 required?

Either one will work for you. Before you order tho, remove your existing fitting from the RO membrane housing and look inside it - you'll be able to tell if it is a standard fitting or a check valve.

Quote:

Also, if the current fitting does happen to be a check valve--would adding the BFS 112 cause a problem as I would then have two check valves?

No - two check valves wouldn't cause a problem in this situation.

Quote:

Thanks so much for all your help. I left you guys some feedback in the vendor area.

[/B]

Very nice of you - Thanks!

labragg1 · 07/19/2007, 10:59 PM

Thanks for the info--I can't find anything that even remotely looks like a flow restrictor on the Coralife unit. Basically the line comes out of the membrane straight to the drain.

It was producing water before, but the TDS was always through the roof.

Regardless--now I'm getting 0 TDS and it seems to be functioning much better. Thanks!!!

07/19/2007, 07:54 AM	#1
labragg1 Registered Member Join Date: Apr 2003 Location: Carthage, MO Posts: 382	Flow restrictor and check valve question Just got my order from you for the new round of cartridges and DI for my Filter Direct and the Coralife rodi units. Everything arrived in perfect condition--thanks. Two quick questions: 1. The Coralife unit was a 50gpd unit, but it did not have any sort of flow restrictor--what kind of problems would that cause? Note--when i ordered the new round of cartridges and membrane from you I got one of your matching flow restrictors--so it has one now. I was just curious why Coralife didn't ship the unit with one to begin with? 2. On the Filter Direct unit I can't really tell if the fitting coming out of the membrane housing is a check valve or not--they two fitting on that end of the housing look the same. Should I just add a BFS 112, or is the BFS 243 required? Also, if the current fitting does happen to be a check valve--would adding the BFS 112 cause a problem as I would then have two check valves? Thanks so much for all your help. I left you guys some feedback in the vendor area. __________________ skywalker Current Tank Info: 65gal RR, 29gal Sump, OCT NW-150 Skimmer, T5 Nova Extreme Lighting

07/19/2007, 10:59 PM	#3
labragg1 Registered Member Join Date: Apr 2003 Location: Carthage, MO Posts: 382	Thanks for the info--I can't find anything that even remotely looks like a flow restrictor on the Coralife unit. Basically the line comes out of the membrane straight to the drain. It was producing water before, but the TDS was always through the roof. Regardless--now I'm getting 0 TDS and it seems to be functioning much better. Thanks!!! __________________ skywalker Current Tank Info: 65gal RR, 29gal Sump, OCT NW-150 Skimmer, T5 Nova Extreme Lighting