Hoover SteamVac Dual V Leaking Valves
Leaking valves on the Hoover SteamVac Dual V Series are a common problem. Typical model numbers for this line are the F7210-900 and the F7452-900, but if your model number has the number 7 after the F then this post applies to your model as well.
NOTE: If the Solution tank on your Hoover SteamVac Dual V model leaks as soon as you put water and shampoo into it then the problem is most likely one or both of the valves. If your tank holds water and shampoo, but only leaks when it is installed on the SteamVac, then you should troubleshoot further to find the source of the leak.
It will not be necessary to replace the complete solution tank unless there is evidence of damage in the area of where the valves are located.
There are 2 valve assemblies on these models, one for shampoo and one for water. It’s basically a 2 part assembly consisting of the valve stem/spring in the center and the gasket or seal around the outside (see picture above).
To remove the old valve assembly; using a pair of needle nose pliers, try to remove the valve stem first by simply pulling it. Do this carefully so as not to damage the plastic bottom of the tank. After the valve stem is removed, the seal should come out very easily. Sometimes the valve stem is a little stubborn and it may be necessary to try pulling on the seal instead. Just be reasonably careful and the entire valve stem and seal assembly will eventually come out.
The new valve assembly will probably arrive in 2 pieces. If not I’ve found that it is easier to install the seal first and the valve stem last. So if the 2 pieces are together, I suggest you install the new seal first. You’ll notice that the seal has a groove cut into it all the way around it. Simply push the seal into the hole in the bottom of the tank until the groove is completely seated in the hole. (It’s a lot easier if you apply some water or shampoo to the inside of the valve seal before going to the next step.) Next, push the valve stem through the center of the seal until it won’t go any further. Now, just put some water in the tank to test it. Let it set for a minute or two. If there are no leaks then you are finished.