Cleaning the Ballcheck on a Spray Pump

A fouled ballcheck valve can keep your pump from working properly. December 29, 2008

I've had this pump for about two months now and I am experiencing problems with it. The pump does not stop pumping after I flip the switch to spray. Is there a way to fix this, or do I have to have a Kremlin repair guy look at it?

Forum Responses
(Finishing Forum)
From contributor H:
When this happens on my Kraco and Kremlin pumps, I clean out the ballcheck in the bottom of the pump. Fixes it about 99 percent of the time.

From the original questioner:
Thanks. I'll give that a shot today.

From the original questioner:
How do you get to the ball check? I couldn't find it.

From contributor M:
The ballcheck is on the bottom section of the pump. Unscrew your fluid supply line from the very bottom of pump. Then unscrew the long piece above. The ballcheck is located on the top of this piece.

From the original questioner:
I'm still working on taking the long piece off - it's on really tight.

From contributor M:
Yeah, there's a black rubber gasket in there that makes it hard to turn.

From the original questioner:
I got the ballcheck cleaned out, now I just have to try it.

From contributor E:
There are two ball checks in this pump. One is located at the bottom in the nut above your draw tube. The other is located in the packing seat on the piston rod. Make sure these are both clean. You will see a spot above your wet cup for a wrench. It's a groove in the piston shaft where the throat seal goes. Leaving product in your pump overnight makes this happen frequently.

From the original questioner:
I was able to clean the ball check at the bottom of the pump and it worked great. Thanks.