# Dialysate flow rate when pulling through a jug

• LoveScience
In summary, the argument at work was about which tube, with a flow rate remaining constant, would fill up faster - a .5 inch diameter tube or a .25 inch diameter tube. The tubes are similar in length and the dialysate jug is open to atmospheric pressure. The concept of capillary action may also play a role in this scenario.
LoveScience
TL;DR Summary
Looking for an answer and explanation (with formula) to understand the physics concept behind what tube would fill faster which same speed of pump (drawing up not pushing fluid through
Friendly argument at work (both non physics majors) with what tube would fill up faster with a flow rate (siphon like) that remains the same through two different diameter tubes. The dialysate jug is open to atm pressure. One tube is about .5 inches in diameter and the other is .25. We were agruing which one would fill up faster with dialysate through the tubes that are similar in length. The tube is drawn in black and is only approx 12 inches in length

LoveScience said:
Summary: Looking for an answer and explanation (with formula) to understand the physics concept behind what tube would fill faster which same speed of pump (drawing up not pushing fluid through

Friendly argument at work (both non physics majors) with what tube would fill up faster with a flow rate (siphon like) that remains the same through two different diameter tubes. The dialysate jug is open to atm pressure. One tube is about .5 inches in diameter and the other is .25. We were agruing which one would fill up faster with dialysate through the tubes that are similar in length. The tube is drawn in black and is only approx 12 inches in lengthView attachment 247240
None of the medical guys have jumped in yet. I would have thought capillary action would play a part
https://en.wikipedia.org/wiki/Capillary_action

LoveScience
LoveScience said:
Summary: Looking for an answer and explanation (with formula) to understand the physics concept behind what tube would fill faster which same speed of pump (drawing up not pushing fluid through

what tube would fill up faster with a flow rate (siphon like) that remains the same through two different diameter tubes
If that statement is true, I don't see the argument being about anything .
Might as well argue if it takes longer to fill a gallon jug or a pint.

With the same flow rate in both tubes the ones with less volume fills up its 12 inch length first.

LoveScience

## 1. What is dialysate flow rate?

Dialysate flow rate refers to the speed at which the dialysate, a special solution used in dialysis, is pumped through the dialyzer during the treatment process.

## 2. Why is dialysate flow rate important?

Dialysate flow rate is important because it affects the efficiency of the dialysis treatment. The faster the dialysate flows, the more waste products and excess fluid can be removed from the blood.

## 3. How is the dialysate flow rate controlled during a dialysis treatment?

The dialysate flow rate is controlled by the dialysis machine, which has a pump that regulates the speed at which the dialysate flows through the dialyzer. The flow rate can be adjusted by the healthcare provider based on the patient's needs.

## 4. What is the ideal dialysate flow rate?

The ideal dialysate flow rate varies depending on the patient's condition and the type of dialysis being performed. Generally, it is recommended to have a dialysate flow rate of 500 mL/min for hemodialysis and 300-500 mL/min for peritoneal dialysis.

## 5. How does the dialysate flow rate affect the patient's well-being?

The dialysate flow rate can affect the patient's well-being by impacting the amount of waste products and fluid removed during the treatment. If the flow rate is too low, the dialysis may not be as effective, while a high flow rate can cause discomfort for the patient. It is important for healthcare providers to monitor and adjust the flow rate to ensure the best possible outcomes for the patient.

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