Where can i get a new water tank valve cap for vicks model V745A?

Vicks V745A Use And Care Manual

This is a POSSIBLE answer: I found the manual at the Vicks site, read through it, but it did not mention replacement parts at all. However, at the very end of the manual was this paragraph, which might serve as a way for you to get what you need. Quoting the manual:

If you have any questions or comments, call the Kaz Consumer Service Department at 1-800-VAPOR-1-2 or, e-mail [email protected] or, write to Kaz, Consumer Service
Department, P.O. Box 544, Hudson, NY 12534, explaining just how the product is operating. Specify model number. Our Consumer Service Representative will advise you how to correct the problem yourself, or will ask you to return the product for repair or replacement.

Does this help you? http://www.appliancefactoryparts.com/humidifiers/vicks/v5100ns.html
My OX husband trod upon his new humidifier LOL...broke the tank and I cannot stop leaking. Anyone have a site where I can buy just a Vicks tank?

If you still have your Owner's Manual or Guide, it should tell you where and how to order replacement parts. Or it should have a Customer Service telephone number you can call.

the value would have been stuck inside the white cap, so when you press the stick with the spring, the head of the valve should stick out. If this does not work, just remove the spring and the black stick from the value, water should come out

the value would have been stuck inside the white cap, the valve rim should come out like an umbrella out of the cap.

The valve on the bottom of the tank is either too tightly twisted on or needs cleaning. Be sure when you push up on the little plastic piece that sticks out that the water comes out quickly (do over sink). If not, loosen the filling cap, clean the valve and screw cap back on, but not too tight.

I think you can find another one on amazon, take a look: Amazon com v745a tank. I hope this was helpful. Have a nice day

Check if the cap has a gasket or o-ring and is not worn. There are two designs for this model. The older model has the fill cap and valve together. The new design the fill cap and valve are at different locations. The new design has no hole in the bottom of the unit.
You can fixed the problem using a 1-1/2 inch washer for brass tubular found in the plumbing isles in HD or L. The rubber washer is 1 or 2 mm smaller then the grooves in the fill/valve cap. You can stretch the washer and it will fit perfectly in the grooves. When putting the fill/valve cap back with the washer, it will be tighter then before. Firmly turn and you should not have any leaks and make sure unit is level. You can plug the hole because the new design does not have a hole in the bottom of the unit.

For Model V745A Vicks Warm Mist Humidifier:

Weekly Maintenance (Removing Scale)

1. Turn the switch to off and unplug the corn from the wall.
2. Remove Water Tank and empty any remaining water from the water tank.
3. Remove Medicine Cup from the Cooling chamber from the Base. Carefully remove the Cooling Chamber and Removable Water Tray from the Base.
4. Soak the Removable Water Tray in a solution of white vinegar and water for 20 minutes. Rinse thoroughly and then wipe dry with a soft clean cloth.
5. Fill the heating chamber with undiluted white vinegar. Let stand for 20 minutes. Dampen soft, clean cloth or sponge with undiluted white vinegar and wipe out Heating chamber to remove scale. DO NOT use soap, detergents or abrasive cleaners.
6. Rinse the Heating Chamber using clean warm water, being careful not to submerge the base in water.
7. The Water Tray, medicine Cup, and Cooling Chamber are top shelf dishwasher safe.