Fellow Campers
For a Varity of reasons I have upgraded and customized parts of my camper water system and put them all in one post. Here are some pics of them. If you want more details, fell free to ask away.
Added a drain hose and blow off hose to the HW heater. I drain the water each trip and the blow off hose is to keep the drips when they come off the electronics.
Next area is the actual suction port and drain port on the fresh tank. By changing the suction port I can suck the tank down to less than 1 quart of water with out loosing prime on the water pump. Otherwise I loose several gallons of water that I cannot use as the original side port sucks air bubbles over the top of the water line and looses the pump prime so the pump will never shut off.
The larger drain valve allows to drain the tank faster than the stock shut off. I drain each trip any left and sanitize when needed so it helps.
You can see here the original suction port on the far right of the tank it is now plugged with a brass plug. It was 1” to the top of the water line when I sucked air into the pump. I could never use the last 1”.
And due almost burning up my water pump with a sucked in air bubble and leaving the camper with the pump on, I changed the pump for that and other reason to a variable speed pump. Now smooth, steady pressure and no wake the dead banging in the middle of the night after a flush.
A heads up, Allways shut off the pump when you go away from the camper. The pump will run forever if you loose prime. The smell of hot electrical insulation is not comforting upon return.
I also added foam pipe insulation around all the pipes anywhere close to the pump to reduce vibration.
I also added what most call an “under the sink” water purifier. Except in my case I mounted it in my outside storage compartment where I can get to it for servicing easier.

A close up. This is 0.3 micron ceramic carbon filtration.
And the fresh tap inside on the left side of the sink.
I’m also into pre filtering the water I put into my fresh tank when it is from a public water supply. At home I do not have to do this, but away from home I do. This is 0.9 micron filtration. I have it setup in parallel to allow faster flow when filling.
A close up of the filters
And the filter mount ½ swung shut
And all the way closed. It tucks neatly out of the way.
And the hinge when open and how it attaches to the camper
And the hinge when closed so the outer door fits inside it.
I also blow out my camper water after each trip. I have a pressure regulator, on/off valve and additional air filter. I have 2 filters 1 at the compressor and this one. I can attach the blow off fitting in the city water line. I only use 40 psi to blow with so I do not stress the system.
Or where I use it the most, here at the discharge of the water pump. This valve allows me to tap in easily to the pressure piping.
Here you can see the air hose on it. My layout blows out best starting from the pump verses the city water feed. I go thru a sequence of low point drains and gravity first then under pressure.
That about completes the fresh water system but I also have tank flushers and a hook up for them. This is how I dump and flush. I use a combo of tank flush and RV hydro flush plus the clear fitting allows me to see that all the paper stops coming out. I have flushers in both fresh and gray tanks and valve to each supply.
And the RV hydro flush
And the flusher valves. I put quick disconnects on these water hoses and this one old one is leaking around the O ring. That is the water you see.
And where I store my sewer hose. There are 2, 10 footers in there
Close up of fitting in 4” PVC Tee
And that is my water upgrades in and outside of the camper. Hopefully these will spark ideas others can use or parts of.
John