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09-21-2020, 04:34 PM
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#1
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Junior Member
Join Date: Apr 2020
Posts: 3
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Max distance for running black water to septic?
Hi - my RV is about 130 feet from my septic tank. Does anyone have any experience or knowledge about running a hose that far from a macerator pump? Is it possible? Any solutions or ideas about this are appreciated. Thanks
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09-21-2020, 04:36 PM
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#2
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Senior Member
Fleetwood Owners Club Ford Super Duty Owner
Join Date: Jun 2012
Location: SoCal
Posts: 15,749
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I have a DIY macerator pump - pump easily to a sewer cleanup through 150' of garden hose.
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Vince and Susan
2011 Tiffin Phaeton 40QTH (Cummins ISC/Freightliner)
Flat towing a modified 2005 Jeep (Rubicon Wrangler)
Previously a 2002 Fleetwood Pace Arrow 37A and a 1995 Safari Trek 2830.
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09-21-2020, 04:41 PM
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#3
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Senior Member/RVM #90
Monaco Owners Club
Join Date: Nov 2002
Location: Columbus, MS
Posts: 54,762
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You can run it any distance, as long as you have slope in the line so it will drain. It will be awfully hard to keep the sewer hose clean and will require a lot of flushing with the gray tank or a water hose. I wouldn't do it. I would use a macerator setup. JMHO
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Joe & Annette
Sometimes I sits and thinks, sometimes I just sits.....
2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD
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09-21-2020, 04:45 PM
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#4
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Senior Member
Holiday Rambler Owners Club
Join Date: Aug 2010
Posts: 9,746
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Sure it's possible. I would use the largest dia hose I could get my hands on.
5/8" minimum.
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Ben & Sharon
2008 43' Holiday Rambler Scepter PDQ
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09-21-2020, 06:37 PM
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#5
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"Formerly Diplomat Don"
Newmar Owners Club
Join Date: Apr 2005
Location: Moorpark, Ca.
Posts: 24,073
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If you can and it won't be unsightly or an issue, I would use 1" pvc pipe and make a permanent line. Connect the macerator and when you're done, flush with some water.
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Don & Mary
2019 Newmar Dutch Star 4018 (Freightliner)
2019 Ford Raptor
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09-22-2020, 05:38 AM
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#6
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Senior Member
Join Date: Jun 2010
Location: Upstate New York
Posts: 3,722
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Again, a macerator will usually do that well though that distance, you probably can't have much, if any uphill part of the hose run. I use a FloJet with a 3/4" hose and at 50 feet, the max length I've used, there is still significant pressure/flow. I tried it with a 5/8" hose and while it did the job OK, the 3/4 " hose works better and of course, much more expensive.
You can also make up a 1" PVC line with garden hose connectors (Home Depot/Lowe's/ Amazon) and a short lengths of regular hose to connect to the PVC at each end
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Dave W
2011 Ford F250 6.7 Lariat CCLB, Gone but not forgotten
2014 Montana High Country 343RL (sold it!)
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09-22-2020, 06:28 AM
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#7
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Senior Member
Join Date: Aug 2013
Location: Haslet, Texas
Posts: 1,137
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Not sure what the max is but we do 250' on occasion.
When we go "home" we often stay at ours sons business, I had a 50amp plug installed on the building next to where we park. The water and sewer are about 250 feet away.
We use the blue Zero G hoses to fill our fresh water tank when needed.
The waste, we bought a FloJet Macerator and if I remember correctly 1" garden hose. There is pretty much no slope where we are. We have never had any major issues.
Since we usually do not use the FloJet I've found it's a good idea to spray some lube into the macerator and rotate the blades with a screwdriver to loosen everything up. We have blown a few fuses so I keep extras on hand. Just be sure not to run it more than about 5 minutes then let it cool. Just like the regular dumping we do black 1st, grey 2nd and the hose is only used for this purpose.
https://www.amazon.com/Flojet-185550...s%2C216&sr=8-5
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2013 Newmar Dutch Star 4318 Which now Identity's as a 2015
2022 Ford F250 Lariat 4X4
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09-22-2020, 06:57 AM
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#8
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Senior Member
Join Date: Apr 2014
Location: Montana, Arizona
Posts: 1,386
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How much do you want to spend? Is this a one time use or a forever install? Do you want to be able to have company who can use the dump as well? Does it freeze where you are at?
A macerator would easily take care of your immediate needs. 130' no problem, HF sells a cheap 3/4" hose that would work well for you. If you plan a permanent install, check with you local septic tank company and inquire about a permanent pump install. Needs 1.5-2" pvc pipe in a trench below frostline connected to the gravity drain into your septic tank. You dump into a tank as needed and the pump takes care of the rest. If you are handy, it's an easy DIY install and you total cost should be around 3000. You could also do a more limited use system using one of the basement sewer pump up tanks and pumps. That one would be about 1/2 the cost but is a more limited use system.
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2016 Arctic Fox 27-5L
2022 Chevy 3500 Duramax
2018 JLUR
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09-22-2020, 09:34 AM
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#9
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Moderator Emeritus
Join Date: Jan 2000
Location: West Palm Beach, FL. USA
Posts: 27,676
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I wouldn't try to use 3/4" hose/pipe at that distance, that would have a lot of back pressure that would make the pump labor hard (and draw a lot of amps). A bigger hose, at least an inch, would work much better. And be less likely to clog. I used 1-1/4" for a run of about 60 ft.
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Gary Brinck
Former owner of 2004 American Tradition and several other RVs
Home is West Palm Beach, FL
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09-22-2020, 10:21 AM
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#10
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Senior Member
Join Date: Jul 2014
Posts: 35,415
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Pickup a roll of 1" black plastic, sprinkler line, and use that. Smooth, low friction, inexpensive, solution.
You can even bury it a few inches down in the ground.
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09-22-2020, 11:00 AM
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#11
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Senior Member
Join Date: Oct 2015
Posts: 269
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Make sure your septic system can handle a 30-40 gallon flush into its system without overflowing...
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Kevin
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09-22-2020, 11:03 AM
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#12
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Senior Member
Join Date: Jul 2014
Posts: 35,415
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Quote:
Originally Posted by KRum
Make sure your septic system can handle a 30-40 gallon flush into its system without overflowing...
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If he ever took a bath and emptied the tub without overflowing, he should be fine.
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09-22-2020, 02:09 PM
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#13
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Junior Member
Join Date: Apr 2020
Posts: 3
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A lot of great information - thanks everyone!
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