Caution with plumbing

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Caution with plumbing

Postby Aquascaper » Mon Feb 15, 2010 12:45 pm

Hey guys,
Let me first disclose that I am in no way a Fluid Dynamics Engeneer...

That being said, noticing the number of 90 elbows, I wanted to share a few numbers that have been passed onto me....

I usually check, double check...ect. info that is given to me -however, in this unique instance, I have not so any input or correction would be greatly appreciated.

(1) single 90 elbow is approx equal to 100 Feet of congruent sized pvc linear friction on pump :shock:
(12) 90 elbows in a single run will shut of flow completely. :shock:

One plauseable alternative is custom bends in a pvc run.
a little heat and sand and this can save on pump wear- pump sizing, and the cost of connectors :lol:

Along with fish breeding - an account for our effeciency of energy- should be taken into consideration.
This is a general statement- presented with love to each of us that are doing our best to enjoy and grow the passion of life.
Just a reminder.
and as always Be Blessed,
Aquascaper

Success occurs as the result of action when it is ones belief that Failure is simply an unacceptable, temporary, situation.
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Re: Caution with plumbing

Postby DanUnderwood » Mon Feb 15, 2010 11:53 pm

I am not an engineer either!

(1) single 90 elbow is approx equal to 100 Feet of congruent sized pvc linear friction on pump :shock:

I think we may be off here. You do have to take pipe diameter and gpm into consideration. A 90 is probably closer to 40 feet of pipe.

(12) 90 elbows in a single run will shut of flow completely. :shock:

Depends upon the pump. A high pressure pump will likely continue to pump.

One plauseable alternative is custom bends in a pvc run.

An easier way is purchase long sweeps. www.flexpvc.com carries sweeps of all different sizes of pipe.

Dan
Dan Underwood
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Re: Caution with plumbing

Postby Aquascaper » Tue Feb 16, 2010 10:22 pm

Thanks for the Link-

I like to utilize the pvc manifolds when i can.

I was given a 20' figure by a master plumber, but upon inquiring at my local plumbers whosale biz-
was given the 100' figure.?,(in a relative hypothetical varient situation)

I'm being a little lazy here, but was hoping someone could enlighten us (non-engineers) with the formulas related :lol:

Thanks Again for the link,
and as always Be Blessed,
Aquascaper

Success occurs as the result of action when it is ones belief that Failure is simply an unacceptable, temporary, situation.
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Re: Caution with plumbing

Postby BaboonScience » Thu Feb 18, 2010 1:02 pm

I use Spa Flex and other flex pipe as much as possible.

The restriction assumes turbulance under full flow I believe.


Aquascaper wrote:Thanks for the Link-

I like to utilize the pvc manifolds when i can.

I was given a 20' figure by a master plumber, but upon inquiring at my local plumbers whosale biz-
was given the 100' figure.?,(in a relative hypothetical varient situation)

I'm being a little lazy here, but was hoping someone could enlighten us (non-engineers) with the formulas related :lol:

Thanks Again for the link,
"The exact contrary of what is generally believed is often the truth" Jean De La Bruyère (1645-1696)
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