Naked Science Forum

Non Life Sciences => Physics, Astronomy & Cosmology => Topic started by: Tim Schultz on 05/12/2010 15:30:03

Title: How would lowering and submerging a pipe affect flow rate?
Post by: Tim Schultz on 05/12/2010 15:30:03
Tim Schultz  asked the Naked Scientists:
   
Chris: I am trying to heat our pool using the the existing circulation system.
 
I have attached a 1" hose from one of the outlets in our swimming pool circulation system. I ran about 100' of 1" pipe along side the pool and the temperature rose about 3degrees f. the water is coming out at the top of the water level at 8 l per minute. I want to add 200' more to the system but am afraid the back pressure will reduce the flow rate. Will lowering the pipe 4 feet to the bottom of the pool create more flow and vacuum pressure even though it is being submerged in the 4 feet of water?
 
Tim

What do you think?
Title: How would lowering and submerging a pipe affect flow rate?
Post by: SteveFish on 05/12/2010 15:36:17
Tim:

No.

Steve
Title: How would lowering and submerging a pipe affect flow rate?
Post by: Geezer on 05/12/2010 18:50:37
I'd agree with Steve. The reason it won't make any difference is because the effect of the downhill flow will be cancelled out by the effect of the uphill flow.