What are /r/rvs' favorite Products & Services?

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Yep, “Solar Prepped” is usually actually just this $10 part installed and wired to the batteries.

https://www.amazon.com/CERRXIAN-Weatherproof-Sidewall-Disconnect-Harness/dp/B07TB7XH2H/ref=sr_1_3?dchild=1&keywords=solar+port&qid=1629468183&sr=8-3

If this is all you have then who ever built your truck didn't finish the job. This is just the valve, it needs to be glued to more parts to make it connect to a hose.

Basically you need one of these or something similar from any RV store and then a trip to the hardware store to buy some PVC glue and all the adapters you need to connect the two. Keep in mind accessibility, so if the valve is mounted down, you will probably want an elbow to make connecting the standard RV sewer hose easy. You also need to keep this capped while on the road, I believe it's the law in some states to prevent accidental discharge.

I think you're asking about the hooks? They're fairly common, im sure you could probably pick up at Walmart. But since we're in the world of Amazon, here's the link. Apologies if I've missed the mark.

https://www.amazon.com/dp/B076LZW4H8/ref=cm_sw_r_cp_apa_glt_fabc_2NVAX2H0XC6JPEW6WB8C

I have not used this so can't speak to how well it works. I was watching a video where someone was restoring a camper and needed to remove some faded graphics. It looked like it did a good job but I believe they went through a few of them.

https://www.amazon.com/dp/B00063VT0G/ref=cm_sw_r_cp_apa_glt_fabc_154T3BHC0AKDP7CTNNW7

If you want easy plug and play on the ground, you could do something like this:

https://www.amazon.com/Renogy-200-Watt-Monocrystalline-Controller/dp/B07RFQVB9M/ref=mp_s_a_1_4?dchild=1&keywords=200+watt+briefcase&qid=1629501311&sr=8-4

If you want to do the rooftop thing, I recommend either going with a professional install or watching a lot of this guy:

https://youtube.com/c/WillProwse

I've had this problem a few times but this might not be your problem. What happened is the house battery got so low that the inrush charging current the battery was demanding pops the auto resetting circuit breaker. I had to jump the circuit breaker for a few seconds with a spare fuse I had around for things to calm down enough to work properly. Not the best solution but when its 9pm in a remote campsite, gotta make things work.

If you can charge from the wall then this shouldn't be a problem assuming you have given it time to charge and assuming your batteries are working.

As far as what you might expect to find. We have one large relay (looks like this) that is tripped when another smaller relay under the hood turns on. This smaller relay is tripped when the ignition is turned on. Basically, ignition turns on small relay which turns on a large relay that connects the house battery to the engine.

Frankly, I'm not sure why the small relay exists as I can't imagine the big relay draws that much current. It sounds like yours will be a bit different as you have that aux start switch that we don't have.

Have you turned on the house battery? I know one person's RV that doesn't charge unless the main disconnect is turned on.

I also had a problem with the control wires into that big relay. They had what looked like a bad factory crimp on one of the wires. It was crimped over the insulation so it had bad contact.

Not exactly the same thing, but this may at least aid you into figuring out some way it could work like the original