ro-di pressure

[robszar]

45-50 psi ok?

 

[KeeperOfFish]

it all depends on which one you have

 

[Phyxius]

Mine ran at below 40 PSI and it worked but not well. After getting with Jim at the filter guys I added a pressure pump and it now works great and puts out plenty of water.
Watch for or PM AZDesertRat as he is pretty good on RO/DI systems and their needs.

 

[virginiadiver69]

Are you on well water?

 

[DMK]

what type or unit do u have robszar? i would say you're fine.

 

[NHLaCrosse]

That wil probably work depending on what you have, although a higher psi may get you more gallons per day.

 

[AZDesertRat]

Higher pressures up to as much as 90 or 100 psi are better, 60 to 80 is ideal. 40-50 will probably work but what may kill you in conjunction with the low pressure is low water temperature, either has a huge impact on production rates but both together will really slow a system down. Here is a link to Dow Filmtecs graphs showing the effects they each have. Dow recommends 50 psi and 77 degrees F.

http://www.dow.com/PublishedLiterat...seps/pdfs/noreg/609-09010.pdf&fromPage=GetDoc

 

[virginiadiver69]

If you are on well water you can just change the pressure cut off switch from a 20-40psi to a 40-60psi at the blue pressure tank. If it is municiple water with low pressure you can use an in-line pressure pump sold at www.thefilterguys.biz for about $100

 

[AZDesertRat]

Changing your well pressure switch is not always a good idea, you need to be aware of the shutoff head pressure on your well pump along with the fact your power consumption will go up significantly since you are raising pressure to the whole house 365 days a year. It not an efficient way to do things.

 

[virginiadiver69]

My plumber did it for me and I love it! No more weak showers and it cut my RO/DI wast water in half. Like I said, the other option is an in-line pump placed just before you water maker.

 

[Docbob59]

Mine is 32 psi and I only run my ro/di long enough to keep my holding tank (10 gal aquarium) topped off. My well water is avg of 71 degrees year round. I replentish about 2 gals aday due to evaporation.