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Old 09-22-2016, 11:33 AM   #15
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Hello all -- I have a 2017 Grand Tour. First time I've needed to winterize -- I bought a water pump kit with the plan to run anti-freeze through my system after blowing it out. When I accessed the water pump it has quick connectors, I would need to cut the input hose to install the "T-valve" and I was also concerned about the restriction this valve creates and expectation that it would reduce water pressure. I've thoroughly blown out the plumbing and think I'm okay but I'm wondering if others have installed a water pump kit on this unit and how it was done. We're in MT so it may get cold this winter Thanks!
Don't forget to run antifreeze thru the macerator pump.
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Old 09-22-2016, 12:06 PM   #16
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Sorry, I can't resist this... we are standing by here in my neck of the woods with bated breath waiting for our camping season to finally begin. Houstonians' fingers are crossed that we receive a "cold" (i.e., upper 60's) front instead of a messy stationary front four days from today (it never hurts to dream). Husband and I are heading into our third winter of Interstate ownership and no need to winterize yet - not even remotely. If we ever had to do it, I might die of a heart attack at the shock of it. Every year at this time, the winterizing threads re-commence, and it feels surreal to me, in view of our current conditions:
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Old 09-23-2016, 10:09 AM   #17
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Thanks all. I've blown out the entire system with 60 psi. Ran the water pump dry for a few seconds and leaving the fittings off for the winter. No AF except drains and grey / black tanks. I'll let you know in the spring how I fare through the MT winter
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Old 09-23-2016, 10:56 AM   #18
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Thanks all. I've blown out the entire system with 60 psi. Ran the water pump dry for a few seconds and leaving the fittings off for the winter. No AF except drains and grey / black tanks. I'll let you know in the spring how I fare through the MT winter
Macerator?
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Old 09-24-2016, 08:07 PM   #19
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Thanks all. I've blown out the entire system with 60 psi. Ran the water pump dry for a few seconds and leaving the fittings off for the winter. No AF except drains and grey / black tanks. I'll let you know in the spring how I fare through the MT winter
Blowing out the lines, AF in grey/black tanks as well as Macerator pump and s t r e c h e d out drain hose will do it, use a little over a gallon total. For cold weather proofing, taking the discharge line off the water pump and running it until no water is coming out, is a must. Blowing out the lines will not get water out of the pump. I take a syringe and inject a little AF into it through the discharge opening, hook the line back up and it's good to go for northern winters.
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Old 09-25-2016, 02:34 PM   #20
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Last winter I just drained all the lines and tanks, and added 3 gallons of pink stuff into fresh water tanks and run through every outlet, outside shower, toilets, sinks, and macerator pump. Dumped some in every drain, and I had zero problems...
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Old 09-26-2016, 02:26 PM   #21
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Got the macerator, thanks. On a related note, I've been told I should store the house batteries where it is warm. Is this really necessary? I understand it's not the easiest chore to remove them. I have shore power and can keep the batteries charged where the rig is parked outside. Note that I am in MT and sub-zero temps are likely.
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Old 09-26-2016, 03:45 PM   #22
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Got the macerator, thanks. On a related note, I've been told I should store the house batteries where it is warm. Is this really necessary? I understand it's not the easiest chore to remove them. I have shore power and can keep the batteries charged where the rig is parked outside. Note that I am in MT and sub-zero temps are likely.
If you can keep plugged into shore power when parked it should be OK. In my view removing batteries is difficult and not really needed unless you are storing your van and not planning to drive it all winter.
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Old 09-27-2016, 07:03 AM   #23
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Got the macerator, thanks. On a related note, I've been told I should store the house batteries where it is warm. Is this really necessary? I understand it's not the easiest chore to remove them. I have shore power and can keep the batteries charged where the rig is parked outside. Note that I am in MT and sub-zero temps are likely.
I had sail boats stored on the hard with AGM batteries which functioned for years and years, leave them in place for a 6 month northern winter, hooked up to a regulated solar panel, never a problem.

Same on AI, solar to house batteries as well as engine battery. Sitting for 6 month last winter (my first one) without any problems. Having to wipe snow and ice off the panels is a bit of an inconvenience, less than lugging batteries out and back in. Shore power is virtually "maintenance free" but we don't all have that luxury where we park the van.
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