Calgary water pressure

ALBERTA REEF · #1 10-02-2009, 05:40 AM

I have just build a 7 stage 300gpd Ro/DI systems. It is hooked up to the down stairs bathroom sink. Pressure their is about 41psi. I suggest running a booster pump. It is inproves pure water out put. My system avarge 12.5gph. I am still have one more test on pure water and waste water ratio. Hopefully it is a 1:1. Still working on it.

lastlight · #2 10-02-2009, 05:54 AM

Sounds interesting Tony. I'll have to take a peek at what you did. Is it just cutting some PEX and inserting a T?

Alberta Reef...Are you running 4 x 75gpd membranes!?

Delphinus · #3 10-02-2009, 06:40 AM

Yep, that's exactly what I did. I just checked on my RO/DI gauge tonight and I guess it's now >100psi.

Just don't do what I did, I should have filmed this and sent it into Discovery as my entry admission request into "Canada's Worst Handyman", when I hooked up the plumbing to the tank room a couple months ago, I put the regulator back in backwards. THAT was an interesting phenomenon: when you open a tap first a huge whoosh of water, then it would slam shut (reverb throughout the house) and then trickle up and down. I was all .. WTF is wrong with the water? Then I noticed the regulator had a little arrow on it and it was pointing the wrong way.

I gotta admit though, I love cutting pex pipe and crimping new crimp rings on them. Man I wish it wasn't $200 for a pex crimper. I'd go hogwild with one. Ker-crimp!! Ker-crimp!! ... Whee!!!!

lastlight · #4 10-02-2009, 06:55 AM

Yeah that is one fun $10 rental. I'm looking forward to doing a little of that again. Those links are bulletproof!

I'm hoping I can find a PEX-john guest fitting somewhere so I can avoid those piercing saddle valves etc. Much rather CRIMP.

ALBERTA REEF · #5 10-02-2009, 05:56 PM

Alberta Reef...Are you running 4 x 75gpd membranes!?[/quote]

No I am running 2 x 150gpd membranes. The has the same rejection rate of the 75gpd ones.

lastlight · #6 10-02-2009, 06:11 PM

Which unit and where did you get it?

ALBERTA REEF · #7 10-02-2009, 06:14 PM

I just took two ro units and build one big one. Filters and membranes came from bulk reef supplies.

BMW Rider · #8 10-03-2009, 08:35 PM

Quote:

Originally Posted by lastlight

I'm hoping I can find a PEX-john guest fitting somewhere so I can avoid those piercing saddle valves etc. Much rather CRIMP.

You can use standard compression fittings for tubing. Those are the brass fittings with the ferrule and nut, you just need to make sure to use the sleeves that slip inside the plastic tubing to reinforce it.

From my experience, the water pressure in Calgary varies from 70-90 psi on average with a few areas coming in as low as 45 psi, but that is uncommon. The maximum you should ever get is 100 in a residential area, there are pressure control valves in the water mains to limit it. Higher than that and household plumbing is more likely to have troubles, particularly the older it gets.