I know it's out there but I'm pressed for time and too lazy to go
looking for it. :)
Here's what I need.
I'm running a drip system from the faucet in my garage to a second
story balcony. My genius builder didn't think to install a faucet out
there. Anyway, what I have is some 1/4" tubing that goes directly from
the faucet (on a timer) up the length of the garage door, across the
length of the garage door, down the length of the garage door (two car
garage), out the garage to a patch of dirt, up a tree that brushes
against my condo, exteneded along a branch, finally entering my
balcony, up two a flower bed - whew......okay...Now, I have enough
pressure to water two flowerbeds - 4 drip sprinklers. I want to add
three more pots and know that i won't have the water pressure to do so.
The total distance that the tubing covers is around 50'-60'.
I have issues here with the homeowners association so I have to keep
things as stealth as possible - that's why I chose to use the 1/4"
instead of 1/2".
Soooooo...now I was thinking of re-tubing the lengths on the inside of
the garage - up, across, and down with the 1/2" tubing. Is this going
to give me more pressure?
I guess what I'm looking for here is someone kind enough to help me
with some calculations.
"water pressure" is directly proportional to "x length of tubing"
having an "inside diameter of x"
I'd like to know if I gain anything by "cutting down" the distance that
I'm using the 1/4" tubing and instead replacing it with the 1/2"
tubing. The total length of all tubing with still be the same - still
Say for example I now have:
A. 50 feet of 1/4" tubing from water source to flower bed and that I
get a water presure reading of X.
B. If I use 20' feet of 1/2" and 30' of 1/4" should my water pressure
increase? If so, by how much?
One more question:
C. If I use 20' feet of 1/2" then go to a 1' section of 1/4" then back
to 29' feet of 1/2" would I have the same pressure as above in "B"?