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OT...fimco pump...15 gal sprayer...leaks

R

Red1

Member
I figure since they sell a lot of those 15 to 50 gallon sprayers someone has had the fimco pump start leaking?

Have the 12v..1.0 gpm..35 psi..4 amp pump..around 60 bucks new..

Started leaking at the middle..opened it up, nothing special one side is the motor, the other the valve body..opened that up and looks ok..no cracks or evidence of water freezing inside..

Turn it on and it runs..puts out a pretty good stream considering it is pouring out of the pump to..What I am wondering about is the pressure valve..the one that shuts off the pump when you release the trigger? It seems to work intermittently..wonder if that is putting too much pressure inside the pump...big O' ring between the halves looks ok..
 
Replace that oring. They get smashed and do not seal. I have to replace mine every few years. Also make sure it does not have a crack in the housing some where. Those little pumps are easy to work on.
 
My pump had a little residual water in the pressure valve that froze and cracked the little housing on the end.

Gene
 
It seems like I have to replace my pump about every other year. They are easy to take apart but I never seem to have any luck fixing my problem.
 
Looks to be .062 x 1.75 o-ring..Of course femco doesn't show it on their assy breakdown...

Head to the hrdwr store tomorrow..
 
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