Plumbing question

[hbtl_ofndr]

So, I don't feel like my RODI has been performing up to snuff. Checked and adjusted the water pressure to the house. At the main I have it set at 65psi. towards the back of the house (with nothing running) it is about 45psi. My questions are:

1. Is there anything else in the system that regulates pressure?
2. Does a 20psi drop seem "normal" depending on where you check it? (closer to the main, closer to 65psi)
3. What is the optimal psi for a RODI unit? I know they say if less than 40psi get a booster pump.
4. How high can I boot my pressure at the main assuming I get a 20psi drop by the time it gets to the RODO unit?

Thanks!

 

[pgr11]

Some hose bibs have regulators on the ends. Pic of where u tested

 

[El Dude]

So, I don't feel like my RODI has been performing up to snuff. Checked and adjusted the water pressure to the house. At the main I have it set at 65psi. towards the back of the house (with nothing running) it is about 45psi. My questions are:

1. Is there anything else in the system that regulates pressure?
2. Does a 20psi drop seem "normal" depending on where you check it? (closer to the main, closer to 65psi)
3. What is the optimal psi for a RODI unit? I know they say if less than 40psi get a booster pump.
4. How high can I boot my pressure at the main assuming I get a 20psi drop by the time it gets to the RODO unit?

Thanks!

1. Yes you should have a pressure regulator on your house line. Should be by the tap in your front yard. Pressure at the main=upstream of the meter. So I hope I'm understanding you properly.

2. No. You may have an isolation valve in your system that is partially closed. Or worse yet a restricted house line. There are different ways to test for that. Isolation valve-scour your house line and look for it. Restricted line do a drop test on the pressure. Take an initial pressure at the tap furthest from the main. Then take a pressure about a minute later after the line has been running. If there is a drop in pressure, you have a restricted line or an isolation valve that's almost completely closed. If its constant, odds are you have an isolation valve partially closed somewhere.

3. My setup is 40-100psi. I run at about 65psi. Anything close to 40psi and you need a booster pump. Crank the pressure at your house line regulator. I cranked mine to the max 70psi. But with a large house line and a couple isolation valves and the restriction down to 1/4" at the system I get 65psi at my RO membrane.

Hope I helped!

 

[pgr11]

Stephen call me. I'm driving and can't type

 

[wickedfish]

Doesn't most of the water pressure one from proper sizing in the pipes coming in. If you go 1" to the house and 3/4" on the main runs to 1/2" at all point the psi should be more than enough depending on the runs and what the city pumps at the meter. If you are on the top of a steep hill you may be screwed.

All this regulator talk, I need pics guys wtf????

 

[El Dude]

Doesn't most of the water pressure one from proper sizing in the pipes coming in. If you go 1" to the house and 3/4" on the main runs to 1/2" at all point the psi should be more than enough depending on the runs and what the city pumps at the meter. If you are on the top of a steep hill you may be screwed.

All this regulator talk, I need pics guys wtf????

CORRECT. However for example: if the line drops from 3/4" to 1/2" then jumps back to 3/4" that is a restricted houseline. A drop test could test for that. A partially closed isolation valve could mimic this also. As for a regulator, I KNOW you have to have seen one. My baby is sleeping on my chest so I'm not going outside to snap a pic. Lemme see if I can find one...

Thank you Google image search! It should look like this but maybe the size of a softball just upstream of the tap in your front yard. Or in your case maybe just upstream of your water softener.

 

[pgr11]

CORRECT. However for example: if the line drops from 3/4" to 1/2" then jumps back to 3/4" that is a restricted houseline. A drop test could test for that. A partially closed isolation valve could mimic this also. As for a regulator, I KNOW you have to have seen one. My baby is sleeping on my chest so I'm not going outside to snap a pic. Lemme see if I can find one...
View attachment 18017
Thank you Google image search! It should look like this but maybe the size of a softball just upstream of the tap in your front yard. Or in your case maybe just upstream of your water softener.

This^^^

 

[wickedfish]

Oh yeah. Water pressure is crazy high in my house because its mandatory here to have fire sprinklers in the new homes. But I think I need a new hose bib cause this one has a Lil dog licking station.

 

[hbtl_ofndr]

Some hose bibs have regulators on the ends. Pic of where u tested

Hose bibs are both 115psi. Not sure what the max on my regulator is. Didn't seem like I could get it above 70psi - but that may just be max for our area?? Call you in a couple - have a buddy coming over to pick up my old BBQ right now.

 

[hbtl_ofndr]

CORRECT. However for example: if the line drops from 3/4" to 1/2" then jumps back to 3/4" that is a restricted houseline. A drop test could test for that. A partially closed isolation valve could mimic this also. As for a regulator, I KNOW you have to have seen one. My baby is sleeping on my chest so I'm not going outside to snap a pic. Lemme see if I can find one...
View attachment 18017
Thank you Google image search! It should look like this but maybe the size of a softball just upstream of the tap in your front yard. Or in your case maybe just upstream of your water softener.

Looks like 3/4" to the house, and everywhere visible IN the house and the back hose is 1/2"

 

[pgr11]

Hose bibs are both 115psi. Not sure what the max on my regulator is. Didn't seem like I could get it above 70psi - but that may just be max for our area?? Call you in a couple - have a buddy coming over to pick up my old BBQ right now.

That doesn't make sense.

 

[hbtl_ofndr]

Which, the bibs or the regulator?

 

[pgr11]

The bibs