Neptune Aquatics

Brass fittings in an R/O system?

Piper

Piper

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I picked up an extra 10" canister from BRS a few weeks back so that I can add a 2nd GAC canister to increase the contact time in order to reduce chloramines coming from the tap. I also want to add a couple of pressure gauges to monitor cartridge performance and a bypass valve just after the last GAC canister to aid in per-rinsing the GAC. In order to do that I need to use a couple of Tees in the system. I thought about using 1/4" PVC but that's not something I'm going to get local and I don't want to pay $15 in freight for $5 worth of PVC fittings.

Is there any reason why I couldn't use brass fittings instead of PVC in this situation? I already have copper pipe and brass fittings leading up to the R/O system now. I can't think of a reason not to but thought I'd ask to make sure I'm not overlooking something simple here.

~Charlie
 
Shipping at Mcmaster should be~10 (cheaper than 15) and you can use that opportunity to get all sorts of supplies that are hard to get elsewere :)
 
BRS only goes down to 1/2" for threaded PVC fittings unfortunately. I did order some 1/4" close nipples from BRS yesterday. I had a few other things to pick up so freight wasn't that bad.

I looked at McMaster too but I never could figure out how to get the freight charges without placing an order. For $10 I could do that if I picked up a couple of other things. I haven't ordered by flexible shafts yet :)

~Charlie
 
Is there any reason why I couldn't use brass fittings instead of PVC in this situation?
Click to expand...

As long as the brass is before the RO membrane you should be fine, highly purified water does get a bit chemically aggressive otherwise.
 
Piper said:
BRS only goes down to 1/2" for threaded PVC fittings unfortunately. I did order some 1/4" close nipples from BRS yesterday. I had a few other things to pick up so freight wasn't that bad.

I looked at McMaster too but I never could figure out how to get the freight charges without placing an order. For $10 I could do that if I picked up a couple of other things. I haven't ordered by flexible shafts yet :)

~Charlie
Click to expand...

It isn't easy to find out charges for shipping. They probably figure most people ordering are not "people", so it isn't a big deal.

I just checked a couple orders I placed for work and it looks like they get you the lowest price possible


Merchandise 10.65
Shipping 5.09


Merchandise 50.74
Shipping 6.45


Merchandise 325.69
Shipping 22.32 (came in 2 boxes)
 
Gomer said:
Piper said:
BRS only goes down to 1/2" for threaded PVC fittings unfortunately. I did order some 1/4" close nipples from BRS yesterday. I had a few other things to pick up so freight wasn't that bad.

I looked at McMaster too but I never could figure out how to get the freight charges without placing an order. For $10 I could do that if I picked up a couple of other things. I haven't ordered by flexible shafts yet :)

~Charlie
Click to expand...

It isn't easy to find out charges for shipping. They probably figure most people ordering are not "people", so it isn't a big deal.

I just checked a couple orders I placed for work and it looks like they get you the lowest price possible


Merchandise 10.65
Shipping 5.09


Merchandise 50.74
Shipping 6.45


Merchandise 325.69
Shipping 22.32 (came in 2 boxes)
Click to expand...

Agreed
here are my shipping charges from mcmaster
Merchandise 24.44
Sales Tax 2.14
Shipping 4.72
Total $31.30


Merchandise 22.62
Sales Tax 2.21
Shipping 5.33
Total $30.16


Merchandise 63.35
Sales Tax 6.02
Shipping 5.00
Total $74.37
 
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