Help! i have a pacific hydrostar 65078. Engine runs fine. Pump pressure is good with the hose off. the stream shoots across my driveway. But when i connect the hose(sears 3/8 25'' i loose all pressure.

https://www.youtube.com/watch?v=XGifDw_Vs_Q
owners manual below
https://www.manualslib.com/manual/796394/Pacific-Hydrostar-98444.html?page=19#manual

https://www.youtube.com/watch?v=Zm9MV7s2EOg
If your pump has no drain plug. If like the second video seems like you could turn upside like I do my lawn mower or remove the four bolts and spin pump upside down.'
That is if your pump is like the one in the video.

First, I'm not a Pacific Hydrostar representative.
* Check your warranty. Call for support.

*** the following is for information only. ***
* Manual; http://www.ppe-pressure-washer-parts.com/files/1961581/uploaded/69734%20manual%20IPL.pdf
* Customer's review; https://www.youtube.com/watch?v=SQCqY1aTmI8
* Customer's start up; https://www.youtube.com/watch?v=T8fxwl06G8s
* In mosts cases of non function in the liquids is a clog (or it's turned off). Clean up all hoses and check if clear.
* Some units may require priming (check the manual)
Aloha, ukeboy57

No, you have to have it plugged or the pump oil will shoot out. I have a similar problem and can't find that part anywhere. They want to sale you a whole new upgraded pump for around $200. If you have original pump the oil fill is about 3/4 way up the tube, then you need to find some way to block, close off the tube opining where the dipstick would go.

There is no oil in this pump. When storing it long term , put some automotive antifreeze in it. Disconnect the water hose and tip the unit on its face to drain water out of the inlet fitting for short term non freezing times.

That cannot be done over the internet, no matter what ISP you have.

Further, you need to be more-specific about exactly what you have.

Pacific Hydrostar makes both sump pumps and pressure washers with 2800 ratings (gallons per hour and PSI, respectively). So you should use the model number of your device, not what the large print on its decals say, when requesting help with them.

disposable product, Hardware stores have replacements.

dont know the model or if it has a pressure switch inside the box but try and remove your lance and just operate the gun... if it runs ok your last could be blocked

Do you know where get a owner/repair manual for a Pacific Hydrostar portable water pump #95977?

Pacific Hydrostar is another pacific rim product that has no website, and no manuals online, and nobody to contact, and no parts available. These machines must be made for the throw-away user.

Pump oil comes about half way up inside pump housing > pump oil is 20 or 30 weight non-detergent oil SAE20 SAE 30
Engine oil comes half way up dip stick > engine oil 10W30

Do not turn power washer on its side or upside down when draining oil, or engine oil will go into carburetor and machine will not start