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Whip Mix Blog

The liquid has stopped on my Aquaspense, what do I do?

One of the frustrations of Colloidal Silica (special liquid) for phosphate investments is the fact that it can crystallize over time and can be a bit sticky. When using a machine like the AquaSpense SL, the nature of the liquid can be a unique challenge to get the correct amount delivered each time. When maintained properly a machine like the AquaSpense SL can deliver the exact amount of liquid each time, provided the user stays on top of preventative maintenance of the unit.

One of the most effective ways to keep the liquid flowing, on a daily basis, is to pinch the tip of the special liquid hose. Using a damp paper towel will be very helpful in removing crystallized particles. It is a good idea to do this each morning before use or any time the unit is not used for several hours. In addition, we recommend wiping down the unit with a damp cloth and removing the scale cover and cleaning it.

Over time, however, crystals will build up along the hose and create a more substantial blockage. In some cases, the white hose can be removed and cleaned by gently pushing a wire through the hose. A straight section of a clothes hanger works very well for this procedure. Although, it may be necessary to replace the cap assembly over time as the clogging can become extreme and the hose will become constricted due to contact with the pinch valve.

If you need to replace the Special Liquid Hose, follow these four easy steps:

1) Loosen the SL bottle cap to depressurize the bottle and swing the arm open

AquaSpense Blog_2.pngTo replace the special liquid hose, loosen the SL bottle cap to depressurize the bottle and swing the arm open as shown.





2) Insert the end of a new, white special liquid hose 

AquaSpense Blog_3.pngInsert the end of a new, white special liquid hose into the round opening on the inside (left) of the arm. Allow the hose to extend approx. 1 inch below the opening.




3) Place your thumb on the hose

AquaSpense Blog_4.pngPlace your thumb on the hose nearest the white pinch valve and hold with direct pressure.





4) Stretch the hose and slide into the pinch valve

AquaSpense Blog_5.pngThe hose should slide in easily, if not, stretch the hose further. Thread the other end of the hose through the opening in the outer (rear) of the swing arm, assuring there are no kinks in the hose. Place the hose onto the center nodule on the cap.



For more troubleshooting tips on the AquaSpense or AquaSpense SL, visit our Resource Library or if you have any questions, leave them in the comments section.

Will Devine, CDT, TE

Will Devine, CDT, TE is retired from the United States Air Force and has over 28 years of dental laboratory experience. As a Technical Support Representative at Whip Mix, Will’s primary focus is assisting customers with questions regarding our consumable products and equipment.