I have a strange issue. The inlet on my pump has a spring tensioner. If I screw in a garden hose it will totally snug up and there will be no slop in the fitting. Yet, since I am running a 3/4" line into the the inlet from my buffer tank I needed a brass 3/4" with 3/4" barb as seen in the video. This connector will not screw in enough to take out the slop and the fitting wiggles around. I honestly can’t figure out the difference in a hose end male connector and this brass male connector.
I think I can either replace the brass inlet on the pump and hope the new connector accepts the brass barb fitting OR I can somehow figure out how to run a garden hose connector from the filter (downstream of the buffer tank) into the pump.
Here is the brass fitting I used - obviously the barb is 3/4" ID Brass Fitting
Seems strange to me.
The fitting on the pump has a garden hose thread adapter on it, the only pipe thread on it is on the male side. You went and threaded a pipe thread into the side that’s threaded with garden hose thread.
If the machine is not going to be force fed with a garden hose than that fitting needs to be tossed.
You’ll like need a 1/2’'MPT x 3/4" hose barb adapter
Don’t do that, if you are gravity feeding it will pull air into the supply and the pump will cavitate and chew up the seals. That fitting is for a garden hose
Thanks for the response! I purchased the PW used so the PO must have added a new fitting on the pump inlet.
To be sure I follow you, you suggest to remove the threaded male brass fitting going into the pump inlet and replace with a proper brass male to female 3/4" - the female side would accommodate a traditional 3/4" male threaded adapter…right? I’ve read your post over and over and don’t totally follow.
My PW is belt drive so gravity fed is not an issue.
No, not at all. The fitting you have hose clamped into your supply hose is called a hose barb adapter. It is sized 3/4" NPT x 3/4" hose barb. You need a 1/2" NPT x 3/4" hose barb. This will thread into your pump and you can eliminate the GHT adapter.
Do not adapt that swivel fitting if you are gravity feeding it will suck air.
Okay, thanks for the clarification. So to be clear, I need this type of connector Adapter stuck into the supply hose. I also need to remove the current brass fitting on the pump (the female adapter with the spring) and just screw this new fitting linked above straight into the pump. I do not gravity feed since I have a belt drive unit.
Would I just be okay if I found a GHT 3/4" male to 3/4" barb so it would be compatible with the connector already on the pump inlet? I am assuming I have a 3/4" NPT to 3/4" barb…I never realized the threads on a 3/4" GHT and a 3/4" NPT are different.
No because that fitting it made to seal when it gets pressure from a main. If you use it while gravity feeding it will pull air and kill the seals in the pump.
Behind the screen in that fitting is a humongous hex drive that you’ll likely not have. You can use a torx or a large flat head screwdriver with a hex shaft and grab that with a wrench in a pinch.
