Let's play what is this.

[Robfromnorth]

I am in the midst if a full year down and rebuild of a 73 Tradewind.

The plumbing lines were all ruptured from freezing at some point but the last owner installed a water pump and I have a couple of questions about what I am seeing. The pump looks like it's in decent shape and so I'm holding on to it. But what is (and should I keep) this thing attached to it?

Also. Why is there springs in these lines connected to the pump.

Thanks in advance for taking a look and sharing what you know.

[AWCHIEF]

Yikes, looks like someone made a trip to Lowes, grabbed a bunch of parts of the closest shelf and screwed them together.

[Robfromnorth]

Yeah. That's pretty close.

I am sure the brass piece is a pressure regulator but it has a black gunky residue.

[featherbedder]

The springs keep hose from kinking or collapsing, if replacing hose insert springs into new hose, other ques. I don't what it is.

[r carl]

Its the switch that turns off the pump when the pressure is built up. The spring is in the suction hose so it doesn't collapse.

[CBWELL]

It is a pressure switch, commonly used on rural house pressure systems, to control the well pump shutting off with high pressure, and turning on when taps are opened and the pressure drops. I have no idea why it is there, unless, the pump that you have has no built in pressure control. If so it is not designed for an RV. It looks like the previous owner was related to McGiver.

[Robfromnorth]

The spring in the hose seems like an over-design. There must be a better and easier way.

[RM66caravel]

A. A pressure regulator for the water pump!
B. hydro coupler for the inertia damper preventing you from flying back against the wall when increasing speed from impulse to warp!
Cliff

[Robfromnorth]

I'll take B anyday. I'm still using a suspended dampening coil system for inertia displacement. You know how hack and patch the 70s models are.

[msmcv51]

Originally Posted by RM66caravel

A. A pressure regulator for the water pump!
B. hydro coupler for the inertia damper preventing you from flying back against the wall when increasing speed from impulse to warp!
Cliff

Thank you Scotty, or is it Mr. LaForge

[RacerX]

Was the PO "Macgyver?" While I'm sure it works, it might make sense to swap that whole setup out with a known RV water pump. It seems to me like SHURflo is the brand you would find in most RV camping stores.

[aquinob]

Is the whole thing plumbed in with rubber hose? Don't think I would care for that, can affect the taste of the water. I'd think about replacing it with PEX. What is the rest of the trailer plumbed with?

[Robfromnorth]

I am replacing all the water lines and drains. I think I'll start a thread on the whole shamozzle, but the short of it is that every copper water line had a break from freezing and the main grey tank drain was broken off the tank and drained into the belly for... Who knows how long.