# water line

Discussion in 'Pumps and Tanks Well Forum & Blog' started by novice-man, Aug 4, 2009.

1. ### novice-manNew Member

Joined:
Aug 4, 2009
Like below drawing, city water flows in 2â€ copper pipe with 45psi, and then it splits into another 2â€ line ( (a) line ) and continue to run (b) line.
There is 2â€ Ball Valve in the middle of (A) line.

What happens if the ball valve in (A) line closed half(50%)?
1) (B) line gets any benefit? More pressure? Or more flow?
Or,
2) (B) lineâ€™s water volume and pressure remains the same?

Thanks much,

--Novice-man

File size:
8.6 KB
Views:
144
2. ### valvemanModeratorStaff Member

Joined:
Mar 15, 2006
Occupation:
Pump Controls Technician
Location:
Lubbock, Texas
If A line is using lots of water, then closing off that line by 50% will give B line more volume and pressure. But now A line will not have enough flow or pressure.

If A line is not using much or any flow, then closing off a valve to that line will not change anything on the B line.

You are going to need a storage tank and booster pump if the main line cannot supply enough flow and pressure.

File size:
26.1 KB
Views:
142

File size:
26.1 KB
Views:
142
4. ### novice-manNew Member

Joined:
Aug 4, 2009
From your diagram, what kind of storage tank? closed tank? thanks

5. ### valvemanModeratorStaff Member

Joined:
Mar 15, 2006
Occupation:
Pump Controls Technician
Location:
Lubbock, Texas
It needs a lid to keep the bugs out but, it needs a screened vent to let air in and out as the level changes.

6. ### novice-manNew Member

Joined:
Aug 4, 2009
Then how to use normal city water pressure when not busy time?

7. ### valvemanModeratorStaff Member

Joined:
Mar 15, 2006
Occupation:
Pump Controls Technician
Location:
Lubbock, Texas
If the city supply has 45 PSI, using a 40/60 pressure switch will keep the pump from running as long as the city line can keep up. When there is more demand than the city line can supply through the bypass line with a check valve, the pressure will drop to 40 and the pump will be started. This will close the check valve on the bypass line and maintain pressure from the booster and storage tank until no more water is needed. Then the pump will shut off at 60, and as the pressure drops, the bypass line will again supply 45 PSI as long as possible.

File size:
23.8 KB
Views:
118
8. ### novice-manNew Member

Joined:
Aug 4, 2009
what is solenoid valve? what function? thanks again

9. ### Gary SlusserThat's all folks!

Joined:
Aug 31, 2004
Occupation:
Retired
Location:
Wherever I park the motorhome.
A solenoid valve to control water flow is installed in the water line and is either normally open or closed, and when power it applied it changes to open or closed until the power is shut off.

10. ### novice-manNew Member

Joined:
Aug 4, 2009
If I want to buy that solenoid valve, can you let me know what brand? and how to hook up electricity? thanks

11. ### Gary SlusserThat's all folks!

Joined:
Aug 31, 2004
Occupation:
Retired
Location:
Wherever I park the motorhome.
I don't know brands, there are a number of them. The electric can be run from a flow switch or the pressure switch.