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Old 01-02-2019, 02:36 PM   #11
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rockfordroo...thanks much. Looks like this idea has been around much longer than I was aware of. I have around a 75 foot run to make that is slightly uphill. Starting to think this might be something I will try.
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Old 01-02-2019, 02:37 PM   #12
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While I don't have any experience using a house-hold garbage disposal as a macerator pump, I do know that if you feed a garbage disposal too fast it will jam and lock-up. That's why they all come with the "oops" wrench.
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Old 01-02-2019, 02:45 PM   #13
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DW....hows things in Alaska? Not all that great in southern New Mexico today. I wondered about that too....too fast with the black water. From what little I've noticed is they seem to purposely put a 'kink' in the three inch hose when they first open the valve, then take it (kink) out as things slow.
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Old 01-02-2019, 03:06 PM   #14
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Quote:
Originally Posted by dieseldodge View Post
DW....hows things in Alaska? Not all that great in southern New Mexico today. I wondered about that too....too fast with the black water. From what little I've noticed is they seem to purposely put a 'kink' in the three inch hose when they first open the valve, then take it (kink) out as things slow.
35 degrees this am. Cloudy in the ANC area. Got light of day about 45 minutes ago. Gaining about 6 minutes of daylight each day. Earthquake damaged roads have been repaired to allow safe travel. Will require finishing repairs once winter is over. Several building around the metro area still require extensive repairs. For Alaskans, life goes on.

Apologies folks, didn't mean to derail the thread.
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Old 01-02-2019, 03:12 PM   #15
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The biggest issue I've seen from those using maceraters is what solids are left behind from not having the big 'woosh' of the 3" diameter hose when dumping.
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Old 01-02-2019, 03:37 PM   #16
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When you are faced with a 75 foot run...slightly uphill...aint going to be a big 'whoosh'. Have to grind it up and send it on it's way....a little at a time. 'Normal' macerators have a way to attach a water source so as to backflush in a way. My thought with the disposal set-up, once gravity has done its thing, hook up a water source to the black tank sprayer for a little extra clean out.
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Old 01-02-2019, 03:53 PM   #17
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Easy to do

Several macerator pumps are available on Amazon (not the brand names like shurflo) or if you are brave, Ebay. I bought the macerator pump and the parts to hook to a hose and a switch for under $100. I also bought a 100 ft 3/4 garden hose to reach my sewer. It works really well.
I looked at the garbage disposal but it costs as much and had to be heavily modified.I bought a Seaflo brand. There are several options but I bought the one that will hook up directly to my sewer outlet, bought some clear hose and fittings to adapt to garden hose threads, and hooked up a momentary switch.
The generator was in the next compartment so I wired up an 12V outlet box off the battery cables so I could plug it up with no problems.
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Old 01-02-2019, 03:56 PM   #18
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Here is what I use at home. Can adapt to a garden hose on the output. I can pump through a 100 foot hose with a a 4 foot rise. Search on Amazon.





Quick Release RV Macerator Pump - 12V, 12GPM.
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Old 01-02-2019, 04:21 PM   #19
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I use a Flojet (12v) Macerator pump, 100ft of 3/4'" hose most of which is coiled up. I pump it from my trailer up into my sewer line inside the house which has a 10ft rise, I have never had an issue. I use a hose to flush through the BW flush and also into the macerator pump to flush the hose.
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Old 01-02-2019, 04:28 PM   #20
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Have you considered a marine head with a built in macerator to replace your RV head (toilet) to liquefy the waste before it enters the holding tank? Then you could just use an appropriate pump for the liquid effluent...
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