Originally Posted by RandiLeigh
I have an Excella ii and I seem to have low pressure. I am almost positive its the screen. I see the inlet where the city water connects with a water hose, but how do I access the screen?
It's deep inside the regulator. The outer housing of the regulator is held together with several screws. (The one shown here
is similar, but not identical) Remove the top part held on with all the screws. There is a spring pressing against the adjuster screw sticking in at the top pressing down against a mechanism in the base. It's not going to fly out or anything, but you will notice that there is pressure against the pieces while you are backing the screws out. Take them out a little at a time moving around the regulator.
In the base (the lower part where the water enters and exits) you will see a large hexagon shaped piece. Using an appropriate socket wrench, (I seem to recall that it is over an inch-perhaps 1 1/16 or so, but it's been a while) remove the hex piece from the base. It holds the screen.
Treat the screen gently. An old toothbrush would be good to clean it. I doubt you could get a replacement if you poke a hole in it without breaking down and buying a new regulator.
Should you have to replace one of these regulators, they are not RV specific. In addition to Amazon (where I linked for the image above) they are available at plumbing supplies and hardware stores. I've seen them at Home Depot.
I hope this helps. I tried to give the details as best I can remember. I'm kind of handy with stuff, so to me it's a 3 step process:
- Take it apart
- Clean the screen
- Put it back together
I realize that this is a bit brief for most folks.