RO Unit Question

[jrsatx20]

That's what I do ray. I only have a ro unit. Had tds tested and came out at 34. Not to bad. I know di can be added but im cheap. I've never had problems using just ro water.

[Big_Pun]

yes plan ahead or get a big storage container, I have a 55g.barrel I use, also if intrested I have a 15 gallon barrel I'm not using anymore for sale pm me if interested

[RayAllen]

Takes me about 3 hrs to make five gallons. Going a lil faster now that it is hot out. During the winter I only have drips if left running. Right now its a steady stream. Mine is a 25gallon per day.

Yep once I get past the first initial 3 gallons it slows to a creep then a drip. Im looking online for my system gpd rating.

[Squiers007]

The Gpd will vary depending on the RO membrane you use as each as a specific rating that should not be exceeded. That is why a flow restrictor is used. Another factor that can slow down a unit is the incoming water pressure. Ideally, the water pressure should be at least 40psi, but I have read other places where people recommend 45 or 50. My water pressure is really good so I run my unit at 50psi. I have a 75 gpd RO/DI unit and it makes ~4 gal/hr.

Ray, I'm curious where you bought your filters and membranes? I think you payed way more than you should have. I just replaced all 3 filters and my RO membrane on my unit and with shipping it only cost me $60. Got them from TBaquatics. Just thought you would like to know.

[RayAllen]

My Membrane cost $47.99 at lowes. Same membrane online cost the same give or take. I will check www.TBaquatics.com for my next change.

[RayAllen]

Is it safe to assume you can switch out a membrane with one that produces more Gpd as long as the fit is the same?

Not going to do that now, seeing I bought this one yesterday.

[Big_Pun]

you need a flush kit the membrane gets saturated and needs to be flushed, I walk out and flush mine every hour or so for min. gets it flowing again. takes me 45 mom to get 5g I also have a 100gpd membrane. yes you can switch out whatever gpd membrane that fits but as gpd goes up the more important it is to have good pressure

[RayAllen]

Thanks Chris go to know.

Mine was installed by the water softner company/plumber when we bought our home so I really have no idea what pressure is going through etc...

[Big_Pun]

Thanks Chris go to know.

Mine was installed by the water softner company/plumber when we bought our home so I really have no idea what pressure is going through etc...

pressure gauges are inexpensive and help for alot of reasons on a ro unit they can also tell you when the pre filters are bad. an the flush kit will extend the life of the ro membrane

[roscozman]

We have a 75 GPD unit from purelyh2o.com and it already had a pressure gauge installed. The recommended psi is 60-80 and we try to keep it at 70psi. It came with a flush kit and I do that once a month.