| Air Bubbles in Outlet Line |
| |
Possible Cause |
How to Check |
Solution |
| 1 |
Bad Chemistry mix. |
- Check Chemistry content. Some mixtures cause boiling of a solution
when the chemistry is submitted to the vacuum that is experienced as the liquid is drawn
into the pump.
|
- Change chemistry.
|
| 2 |
Temperature too hot. |
- Make sure that chemistry temperature is below its boiling point.
Take into consideration that the chemistry will boil at a lower temperature as it
experiences the vacuum condition as it is sucked into the pump.
|
- Lower temperature.
- Live with bubbles. Though this will decrease throughput it will
not hurt the pump.
|
| 3 |
Loose tubing connections at pump inlet or in line back to the
source. |
- Check tightness of all tubing connectors from pump inlet back to
tank.
|
- Tighten tubing connectors
|
| 4 |
Bad Liquid valve upstream from pump. |
- Replace inlet tubing with testing tube running directly from inlet
on the pump to the tank and see if normal operation resumes.
|
- Replace defective liquid valve.
|
| 5 |
Hole in tubing upstream from pump. |
- Replace inlet tubing with testing tube running directly from inlet
on the pump to the tank and see if normal operation resumes.
|
- Replace defective liquid tubing.
|
| 6 |
Ruptured Bellows |
- Check to see if mist or dripping is coming from mufflers.
|
- Return pump to White Knight or authorized service center.
|
