beameupscotty
Civil/Environmental
- Aug 7, 2003
- 17
I have a couple "technique" questions for sizing private residential multiplex townhouses.
1. When counting pressure losses from the city's main:
-What's a typical loss from the tap to the meter (1-1/2"?
-Is 3 psi reasonable for loss through the meter?
-For a run of 350 LF with one horizontal bend (2-45d or a 90d), what's a reasonable assumption of bend losses? (pipe is 1-1/2" PVC sched40)
-Do I count all bends through the plumbing in the house and add to my losses.
-Do I use the city's average pressure or find out the lowest pressure? (city PW gave me average)
2. When counting fixture units:
-Is a dishwasher a seperate unit from the sink it connects with?
3. Where can I find a chart like A-4 or A-5 for PVC? I have the '94 book with some pages taken from the 2004 version.
Thank you to anyone who has the time and desire to help me with any or all of my questions.
1. When counting pressure losses from the city's main:
-What's a typical loss from the tap to the meter (1-1/2"?
-Is 3 psi reasonable for loss through the meter?
-For a run of 350 LF with one horizontal bend (2-45d or a 90d), what's a reasonable assumption of bend losses? (pipe is 1-1/2" PVC sched40)
-Do I count all bends through the plumbing in the house and add to my losses.
-Do I use the city's average pressure or find out the lowest pressure? (city PW gave me average)
2. When counting fixture units:
-Is a dishwasher a seperate unit from the sink it connects with?
3. Where can I find a chart like A-4 or A-5 for PVC? I have the '94 book with some pages taken from the 2004 version.
Thank you to anyone who has the time and desire to help me with any or all of my questions.