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Old 08-17-2014, 05:58 PM   #1
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1973 25' Tradewind
Calgary , Alberta
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Let's play what is this.

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.

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Old 08-17-2014, 06:04 PM   #2
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2006 23' Safari SE
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Yikes, looks like someone made a trip to Lowes, grabbed a bunch of parts of the closest shelf and screwed them together.
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Old 08-17-2014, 06:06 PM   #3
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1973 25' Tradewind
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Yeah. That's pretty close.

I am sure the brass piece is a pressure regulator but it has a black gunky residue. Click image for larger version

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Old 08-17-2014, 06:07 PM   #4
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1976 31' Sovereign
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The springs keep hose from kinking or collapsing, if replacing hose insert springs into new hose, other ques. I don't what it is.
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Old 08-17-2014, 06:10 PM   #5
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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.
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Old 08-17-2014, 06:46 PM   #6
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1994 34' Excella
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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.
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Old 08-17-2014, 06:56 PM   #7
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The spring in the hose seems like an over-design. There must be a better and easier way.
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Old 08-17-2014, 07:21 PM   #8
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Newport , North Carolina
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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
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Old 08-17-2014, 07:23 PM   #9
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1973 25' Tradewind
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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.
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Old 08-17-2014, 07:28 PM   #10
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Quote:
Originally Posted by RM66caravel View Post
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
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Old 08-17-2014, 07:30 PM   #11
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1964 22' Safari
Walnut Creek , California
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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.
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Old 08-17-2014, 09:13 PM   #12
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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?
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Old 08-18-2014, 03:58 PM   #13
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1973 25' Tradewind
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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.
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