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Originally Posted by DeTrevni  <3 my pump Rainmaker.
Silver and black? Do you mean a silver barrel? |
Must be, the 1450 with the big loud bull barrels are 6 volt. Love that barrel!
I think the 1451 models also have the plastic nipples on the solenoid. That plastic gets old an fails pretty often. Take the shroud off and you should be able to find out where the air is leaking.
Also pull the bolt cover off to see if the bolt is all the way back. Sometimes they leak when they are gassed up after the last time time it was used and the tank ran out before it could cycle. That would mean that the main spring was not compressed and could still be pushing a little on the valve.
That really is the best way to store a Rainmaker for an extended period of time anyway, or the main spring stays in the compressed position and can weaken over time.