1st RO/DI

NanoHuman · #1 09-17-2010, 06:16 PM

The production per day is generally at 100PSI, where your pipes provide a tiny fraction of that. Unless your system has a pump to generate that pressure, you won't come close to being able to meet the rating.

Rogue951 · #2 09-17-2010, 06:50 PM

Does that unit come with a PSI gauge?
I live in vancouver and the water pressure in a house is around 60PSI.
my unit is rated for 50 GPD and I can fill a 6 gallon container in around 3 hours so the rating is almost spot on.

Captainhemo · #3 09-17-2010, 06:56 PM

At 40 pse, my 90 gpd spectrapure takes about 20-25 minutes to produce a gallon. Warming the source water a bit will hep a bit

hillegom · #4 09-17-2010, 07:56 PM

You have to remember, 100 gal per day is about equal to 4 gals per hour. or 1 gal per 15 min. So you are very close to what you should have.
As said, warming the incomming water and increasing city water pressure will help to bring up your volume of RO\DI. So will a permeate pump.
How big is your accumulater ?

Milad · #5 09-17-2010, 10:54 PM

heating the water doesnt mean using hot water. I believe hot water kills the membrane

whats your TDS out of the tap? Whats the pressure before the RO/DI unit and whats the pressure before the membrane?

if you dont have pressure thing, you can get a pressure meter from homoe depot and throw a T on it wherever you need to measure at. Should be at 80psi from tap, around 60 before membrane.

TDS is high, you have good water going into the drain and bad water coming out of the hose. So you have the waste and good water backwards
If pressure at tap is low then you need to increase it
If pressure right before the membrane is low then your carbon and sediment filters are old

Joe Reefer · #6 09-17-2010, 11:02 PM

That sounds a little slow to me, it could be due to in-coming water temp./pressure etc. Adding a booster pump will increase production dramatically. Either way good to hear you are going to use RO water.

Murminator · #7 09-18-2010, 04:12 AM

I guess with the accumulator tank I figured when I turned on the tap I would have 2 gallons on hand. I used a line saddle and pierced the 1/4 line between the shutoff and the tap. I'm thinking of changing out the line and t'ing it off so I have better flow. I also think i'm going to have to put in a holding tank on a float valve.....just where to put it