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Old 10-03-2022, 08:51 AM   #1
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Potable water transfer pump

As the title says I am looking for a potable water transfer pump.

I know many people use a standard RV, 12v pump for this and it works well for them.

I am looking for something with a little more volume. I carry an extra 100 gallons of water on my tow vehicle when we will need it. So far I have been able to park in places where we can gravity flow, but that will not always be the case.

Most RV pumps are in the 3 GPM range and that would take over 30 minutes of continuous pumping. I have seen a few high flow RV pumps but they get expensive quick and still use the smaller 1/2" fittings. Is there something in the 10 GPM range that uses regular 3/4" hose fittings that is a reasonable (I know that varies) price? 12v would be nice, but I can easily support a 120v option if one exists.
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Old 10-03-2022, 09:00 AM   #2
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Northern Tool - https://www.northerntool.com/shop/to...1283_200631283

5 gallon bucket

Drain spare tank to bucket, put pump in bucket, hose connect pump discharge to coach fill port.
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Old 10-03-2022, 09:50 AM   #3
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Or at the same place... a sprayer pump.
https://www.northerntool.com/shop/to...7651_200887651
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Old 10-03-2022, 11:29 AM   #4
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Northern Tool - https://www.northerntool.com/shop/to...1283_200631283

5 gallon bucket

Drain spare tank to bucket, put pump in bucket, hose connect pump discharge to coach fill port.
I know there are lots of water pumps out there including ones like this. Am I missing something? How is this for potable water? What would you do to keep the unit clean?
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Old 10-03-2022, 11:32 AM   #5
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Or at the same place... a sprayer pump.
https://www.northerntool.com/shop/to...7651_200887651
How do I find out if these are for potable water? I can find lots of pumps in the GPM range that I need. What I can not find out is if they are potable. Do you know how to find out?
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Old 10-03-2022, 11:46 AM   #6
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I made up an external water pump system using a 12v pump from Amazon ($20, 1/gpm) and 10’ of hose on the inlet and 20’ on the outlet. I plug it in to a hardwired 12v plug from my batteries, connect the hoses, and walk away for the half hour it takes to fill my tank. While it’s filling I keep setting up camp.

https://www.amazon.com/bayite-Diaphr...Q%3D%3D&sr=8-5
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Old 10-03-2022, 12:25 PM   #7
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How do I find out if these are for potable water? I can find lots of pumps in the GPM range that I need. What I can not find out is if they are potable. Do you know how to find out?
Myself I would not worry about it, but this is the best I could find. The amount of possible 'leaching' from the internal parts would be minuscule, just don't leave the water in it. You could confirm with Gol Pumps.


Good luck



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Old 10-03-2022, 12:56 PM   #8
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Myself I would not worry about it, but this is the best I could find. The amount of possible 'leaching' from the internal parts would be minuscule, just don't leave the water in it. You could confirm with Gol Pumps.


Good luck



Only problem with that pump (or maybe 2 when you consider price) is it’s not a brushless motor. Generally these things are only good for about 200 hours and their toast.
Cost is over $100. Flow rate is good at 11 gpm so probably 6 minutes or so to fill the OP’s coach from empty (and assume no big difference in elevation between the reservoir and the coach).

The pump I pointed out is a fully enclosed brushless pump at ~1/2 the cost and almost double the flow rate. Only issue is the suction inlet cannot be hose connected and it needs to be submerged for cooling - the 5 gallon buckets allows for dealing with both issues.

But at least the OP has choices.
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Old 10-03-2022, 01:19 PM   #9
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Question where is the dirty water going?

Fusion 32T tank sizes:

Holding TanksNumber Of Fresh Water Holding Tanks1Total Fresh Water Tank Capacity 112.0 gal.Number Of Gray Water Holding Tanks1Total Gray Water Tank Capacity 88.0 gal.
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Old 10-03-2022, 03:54 PM   #10
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I made up an external water pump system using a 12v pump from Amazon ($20, 1/gpm) and 10’ of hose on the inlet and 20’ on the outlet. I plug it in to a hardwired 12v plug from my batteries, connect the hoses, and walk away for the half hour it takes to fill my tank. While it’s filling I keep setting up camp.
We have already been set up for a week when we need to refill. We like to enjoy our days off not spend time doing chores. At 1 GPM that would take over 1.5 hours to transfer.

I do not need an inlet hose as it would attached directly to my bladder. I would use a quick fitting on the outlet side to use with my current RV hoses.
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Old 10-03-2022, 03:55 PM   #11
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The pump I pointed out is a fully enclosed brushless pump at ~1/2 the cost and almost double the flow rate. Only issue is the suction inlet cannot be hose connected and it needs to be submerged for cooling - the 5 gallon buckets allows for dealing with both issues.

But at least the OP has choices.
I still have the issue of keeping the bucket and pump clean enough for potable use.
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Old 10-03-2022, 04:01 PM   #12
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Question where is the dirty water going?

Fusion 32T tank sizes:

Holding TanksNumber Of Fresh Water Holding Tanks1Total Fresh Water Tank Capacity 112.0 gal.Number Of Gray Water Holding Tanks1Total Gray Water Tank Capacity 88.0 gal.
The question was about a pump, not dumping, but I will answer.

I have 132 (88/44) gallons of holding so it depends on my location.

If I am in a place that is appropriate, the grey water gets pumped out in place. If I am in a place that is not appropriate, all grey water will get pumped into the 60 gallon waste tank on my tow vehicle.

Black water always gets directly dumped at a dump station or moved to the tow vehicle tank.

Tow vehicle tank is dumped at a dump station.
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Old 10-03-2022, 07:58 PM   #13
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I still have the issue of keeping the bucket and pump clean enough for potable use.
Add a tablespoon or so of regular bleach (non-scented non-foaming) to the first bucket of water, let it sit for 2-3 minutes with the pump immersed in the water, everything will be sanitized including the subsequent water that passes thru the pump and mixes with the original water.

If you get a bucket that has a lid - you can keep the pump and hose (if not using your regular fill hose) in the bucket so as to minimize contamination between uses. Just be certain to dump any residual water from the bucket and hoses after each use.

If you want a full sanitary system, well, state how much money your willing to spend and details of such a system can be gathered for you.
But it does raise the question - what precautions are you taking for insuring the water reservoir in the toad is not contaminated?
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Old 10-03-2022, 08:24 PM   #14
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Add a tablespoon or so of regular bleach (non-scented non-foaming) to the first bucket of water, let it sit for 2-3 minutes with the pump immersed in the water, everything will be sanitized including the subsequent water that passes thru the pump and mixes with the original water.

If you get a bucket that has a lid - you can keep the pump and hose (if not using your regular fill hose) in the bucket so as to minimize contamination between uses. Just be certain to dump any residual water from the bucket and hoses after each use.

If you want a full sanitary system, well, state how much money your willing to spend and details of such a system can be gathered for you.
But it does raise the question - what precautions are you taking for insuring the water reservoir in the toad is not contaminated?
I did say reasonable, not cheap, but I did not state a price. I would like to stay under $250.

For my current system I have 2 - 50 gallon bladders. The bladders are filled from a potable source with my fresh water hoses after passing though and inline filter. The bladder is a closed system. The end is kept covered with a clean plastic bag. The bladder is bleach rinsed 1-2 times per year based on use and environment.
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