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Obewan's avatar
Obewan
Explorer
May 25, 2014

Water pressure issue?

All set up at campground. Water hose from hose bib (well water) to inline filter to portable water softener to pressure regulator to camper city inlet. Same set up as before but this time, the gauge reads 45 psi at hook up and after running water in the coach but slowly creeps up to 90 psi when no water is running. Campground staff say they have notoriously low water pressure and originally advised me NOT to use a regulator (advice I did NOT take).

Has my regulator died? It's only 2 months old. Do I have the correct set up? Is this normal? It's never done this before.... Any ideas?

Actually, I did put the regulator first in line always in the past, but it won't fit in this campgrounds set up.
  • Heiny57 wrote:
    Maybe your water heater is making pressure for you. Mine does, I have to run some water as it is heating.

    Ding, ding, we have a winner. There is no way 45psi line pressure can increase without adding something. That something is the expansion of the water/air in the HW heater when going from a cold start to operating temp. Leave a small amount of water out of the system while warming up the HW heater.

    WDP
  • Maybe your water heater is making pressure for you. Mine does, I have to run some water as it is heating.
  • Fill up your fresh water tank and run off of it and the pump... Sure, it's not as convenient as having it hooked up, but at least you won't have 90 psi on your lines until you figure it out! ;)

    Good luck!

    Mitch
  • Obewan wrote:
    It's a Valterra adjustable lead free regulator preset to 45 psi. I haven't changed that.


    I am not sure what these regulators looks like inside and have not been able to find a drawing or design info. on the internet. Your regulator could have a build-up of silt or deposits inside. If the
    Valterra can't be dismantled and cleaned, it's time for a new one. In that case, I would upgrade to a better Watts or maybe Cash Acme.

    That's a good suggestion to borrow someone else's regulator and see what happens.

    Not much info. out there from RV users on the Valterra adjustable regulator. These threads might have something in them for you.

    https://www.heartlandowners.org/archive/index.php/t-42074.html

    http://www.rv.net/CFORUM/index.cfm/fuseaction/thread/tid/27044971.cfm

    http://www.irv2.com/forums/f84/valteera-adjustable-water-pressure-regulator-with-gauge-39479-2.html
  • It's a Valterra adjustable lead free regulator preset to 45 psi. I haven't changed that.
  • What type of regulator? If one of the basic inline ones, the way they regulate is via a small orifice (ie., hole) inside the regulator. It's something like 1/16" - 3/32" in dia. After sitting for a while, the pressure equalizes on both sides of the orifice. If that's what you have, you'd better off going to a "real" regulator with a diaphragm in it like the Watts 560 mini regulator or better, the Watts 263A (higher flow rate).

    The inline regulators have rather low flow rates of around 1 gpm because of the small orifice. The 263A will give you around 4 - 4.5 gpm. Because water softeners and filters can reduce the flow and pressure, it's better if you start with decent flow and pressure on the inlet side of them.

    NOT using a regulator isn't good advice. A regulator should always be used and be installed ahead of filters and water softeners.

    I recently installed a Watts 263A regulator inside our TT and have a gauge after the regulator and also a telltale one ahead of it. Have only been able to get 2 camping weekends in so far this year, and both times, the CG supply got up to 80 psi. I've of many cases of CG pressure getting up to the 150 - 200 psi range and that can really damage filters and water softeners.
  • I don't have a lot in my tool box but I do have a spare regular. If that happened to me I would switch it out. I once found some junk in it after I switched it out so I cleaned it and put it back in to tool box