Where to attach gauge for rodi?

miserkris · 12/08/2011, 10:42 PM

I got a $10 gauge from hd up to 100 psi, some adapters to fit a 1/4" line.

Question is where do I fix this? Do I create a T from mainline going to valve to rodi? Or after valve before rodi?

Or temporarily fix it from line going to rodi without a T?

Is it better to have this as a permanent addition.

Thx

atkinsg · 12/08/2011, 10:52 PM

If you want to detect a pressure drop across the filters, T it into the line after the carbon block and before the RO filter. If you want to know the pressure going into the system, T it in after the main and before the filters.

Most people want to know the pressure after the filters so they know when they need changed.

Buckeye Hydro · 12/09/2011, 06:48 AM

Quote:

Originally Posted by atkinsg

If you want to detect a pressure drop across the filters, T it into the line after the carbon block and before the RO filter. If you want to know the pressure going into the system, T it in after the main and before the filters.

Most people want to know the pressure after the filters so they know when they need changed.

Great answer!

Bens_Reef · 12/09/2011, 11:16 AM

i know some people also put 2 gauges on there, one before the carbon block pre-filters and one before the ro membrane, this way they know the difference between both before and after the filters. otherwise you will need to take note of how much pressure you have when the filters are brand new to know when its dropped enough to change the filters.

12/08/2011, 10:42 PM	#1
miserkris Registered Member Join Date: Mar 2010 Location: Downingtown,PA Posts: 1,062	Where to attach gauge for rodi? I got a $10 gauge from hd up to 100 psi, some adapters to fit a 1/4" line. Question is where do I fix this? Do I create a T from mainline going to valve to rodi? Or after valve before rodi? Or temporarily fix it from line going to rodi without a T? Is it better to have this as a permanent addition. Thx __________________ 156g Oceanic Mixedreef,100g Sump Current Tank Info: 156 g mixed reef

12/09/2011, 11:16 AM	#4
Bens_Reef Registered Member Join Date: Sep 2011 Location: Lansing, MI Posts: 324	i know some people also put 2 gauges on there, one before the carbon block pre-filters and one before the ro membrane, this way they know the difference between both before and after the filters. otherwise you will need to take note of how much pressure you have when the filters are brand new to know when its dropped enough to change the filters. __________________ Briareum sp., Zoanthus sp., Caulastrea furcata, Protopalythoa sp., Capnella sp., Galaxea spp., Anthelia sp., Euphyllia paranchora 6-Line Wrasse Current Tank Info: 40g Reef/20g Sump/Fuge, 80# LR and 120 Watt LED 460nm 14k PH-8.3, NO3-10-15, PO4-0, dKH-7, Ca-500, Mg-1440, SG-1.026, 77.2-78.2 F

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12/08/2011, 10:52 PM	#2
atkinsg Chemist/Software Dev Join Date: Feb 2005 Location: Illinois Posts: 312	If you want to detect a pressure drop across the filters, T it into the line after the carbon block and before the RO filter. If you want to know the pressure going into the system, T it in after the main and before the filters. Most people want to know the pressure after the filters so they know when they need changed.