Jump to content

Slow RO/DI


Zarathustra2

Recommended Posts

I just hooked up my newish RO/DI. It is suppossed to be a 65GPD unit. I have it hooked up at my faucet for the washing machine off of a split. In the last day it has probably put out about 30Gallons. Any suggestions on what I should check up on to get the output a bit faster.

Link to comment
Share on other sites

+1 for pressure, theres one other thing to try but check the presure 1st. theres a screen u can remove that will help but check the pressure 1st. Sometime the R/O membrane has to get broke in. when i turn mine on it will put out a little over 2 gallons then go dry. I wait for 10-15 mins then get more. Mines not as big as urs though.

Link to comment
Share on other sites

bad pressure = not so good ro water. if you are having bad pressure problems then the ro/di wont work correctly. you may have to install a booster pump.. do you have a TDS meter on both sides of the ro?

Link to comment
Share on other sites

How old are the filters? Even with good pressure a clogged filter won't allow correct flow. It is also possible that the wrong flow restictor was installed or that the RO membrane is not rated for your expected flow rate.

Link to comment
Share on other sites

heres what you do, take a gallon ziplock bag open it all the way up around the facet open it up full blast for 30secs 5 inches is a gallon in the bag, so if the bag is 1/2 full in 30secs then you have 5-6gallons per min.. this is just for a ruff estimate. i used to use this trick when i worked for Marriott i did engineering quality control and inspections. (basicly i went to properties and made sure they were up to standards in the engineering aspect) i was a chief engineer for 5 yrs prior. anyway it works and its fairly accurate..

Link to comment
Share on other sites

i wouldnt do anything till a TDS meter is involved, that way you can be sure. Other wise you mite ebdup with an algae breakout and be very disappointed.. the BRS order will be in soon then you will know..

Link to comment
Share on other sites

Yea, I need enough water to cover the live sand and rock I am picking up today. After that I'm gonna hold off till I get an RO/DI. Since I'm cycling the tank I'm not all that worried about excess nutrients as the algae blooms will take those up. Anyways... need enough nutrients to get the algae scrubber going.

Link to comment
Share on other sites

heres what you do, take a gallon ziplock bag open it all the way up around the facet open it up full blast for 30secs 5 inches is a gallon in the bag, so if the bag is 1/2 full in 30secs then you have 5-6gallons per min.. this is just for a ruff estimate. i used to use this trick when i worked for Marriott i did engineering quality control and inspections. (basicly i went to properties and made sure they were up to standards in the engineering aspect) i was a chief engineer for 5 yrs prior. anyway it works and its fairly accurate..

Matt

I am interested in this method but I think you have explained something wrong. I read it as saying a one gallon ziplock will hold 5 or 6 gallons of water??

Bill

Link to comment
Share on other sites

So i'll need the TDS meter to confirm but the RO looks good right now. Started flowing a lot faster this afternoon so thats fantastic. Seems like the "it just needs to break in after sitting around for a while" theory may be spot on.

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

×
×
  • Create New...