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jstaffon's avatar
jstaffon
Explorer
Feb 13, 2017

Water pressure and flow regulator question

I have the typical pressure regulator for my city water connection on my 2016 Rockwood 5th wheel. It is marked to regulate to 40 - 50 psi. I also noted that there is a plastic water flow restrictor inside on the downstream side of the regulator that can not be removed. It has an outlet hole about 1/4" in diameter. This restricts the flow inside the camper too much. I also have a gauge and know the water pressure is around 40 psi. I'm considering drilling out the restriction to something more realistic. I'm very water conscious and don't waste water when showering, etc but It's important to have enough flow to flush the toilet correctly. Does anyone know if drilling out that plastic restrictor may have unintended consequences? Thanks in advance!

15 Replies

  • Been using one of those "piece of junk" regulators" for more than two decades. I use one of the newer "High flow" units now but they work great and I can see no reason to spend any more. It provides more flow than I can use and the flow at the faucets and shower are as good or better than in my house.
    My suggestion is to make sure you have one of these high flow models but in either case, I dont think that's causing any problem with your toilet.
  • This is a Watts that is top quality, I keep it set to 60psi with good flow!

  • Old-Biscuit wrote:
    Get rid of that piece of junk and buy a WATTS adjustable regulator.
    Problem solved.


    but that will cost more than $9.95
    bumpy
  • Get rid of that piece of junk and buy a WATTS adjustable regulator.
    Problem solved.
  • Unless your's is different, I've never heard of an RV toilet needing water pressure to flush it. You either push slightly on the peddle with your toe and it fills the bowl. Or you lift with your tow slightly and it fills the bowl. Once fill, you push the peddle down and it empties, usually just straight down into the holding tank.

    Shower head also have restrictions on them preventing the full pressure to be felt. Before making any changes, remove the head off your shower and see how fast the water is running. You may be just fine getting a different shower head.

    I don't know about your regulator, but before messing with it, how about adding water to your fresh water tank and try running water and taking a shower using the water from there. See how much your water pump is putting out. Your water pump will not exceed the pressure for your plumbing pipes. But outside city water can ... very easily. If the on-board pump performs better, you might consider just getting a new regulator rather than messing with the existing one and setting up for failure.

    (I think I ready your post correct)... the "down stream" regulator is NOT in your camper plumbing is it?

    FYI, I quit dealing with the question of water pressure and regulation. I simply fill my fresh water tank and use my on-board water pump. Been doing this for years. When the tank nears empty, I simply fill again and put the garden hose aside. Never have to worry about water pressure this way.

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