[DutchmenSport]

Although the "time" test is a good way to determine exactly how much water is running at the end of each faucet, it is not an indicator of the pressure. All you can do is determine how many gallons are running for a specific length of time at each faucet, hot and cold and both. Each faucet will be different because of the water restrictions built into each faucet, and the size of water pipe the water is running through. Also, turning on a second faucet at the same time will reduce water "pressure" at the faucet being tested.

If you do not have pressure gage, the best you can do is to turn on the shore water spigot with no hoses attached. See how fast the water is running there. You can do the gallons per "x" amount of time if you want right there. Then compare that with the number of gallons per the same "x" amount of time in the camper, and you'll have your restriction identified.

If the rate of flow is significant at ever faucet inside the camper, then I'd start with the screen filter where your garden hose connects to the trailer. There is a little screen there and it could be clogged up. It's easy to remove and check. It's also often overlooked and not even though of.

If the rate of flow is slow when using your on-board water pump, you really need to make sure your shore water source is turned off. If shore water is turned on and you turn on your on-board water pump, your pump will not pump. Your water source is still coming from the garden hose, even if the water pump is running.

From your description, this sounds like what's happening. The outside screen is clogged and you are running your water pump with the garden hose still turn on also.

So, make sure shore water is turned off (the water spigot) and try your on-board water pump with water in your fresh water tank. Both should NOT be on at the same time. One or the other, not both.

I have a feeling your water pump will spit out a much better flow. Try it. Let us know what you find.