Macerator May 06, 2023, 07:16:45 pm I have a bit of an odd situation. I have another RV which does not have black or gray tanks. It’s plumbed with a sink, shower and residential flush toilet. All this connects to a standard 4”” valve. So when parked at our RV park the valve is left open and all sewage exits as the plumbing is used. Works great.Now here is where things could get interesting. I plan on parking this RV at a residence where there would be a 75 foot run to a septic tank. I’m thinking of employing a macerator to push the sewage. I have never used a macerator before but it seems that would be a good solution for me. I was thinking the macerator would automatically detect a flushed toilet or water from the sink and turn on and off as needed. Im realizing that is probably wishful thinking on my part and that the macerator is manually turned on when one opens the sewer valve.Can anyone confirm an on demand macerator exist? Any other suggestions out there for me to consider?Thanks much,Steve
Re: Macerator Reply #1 – May 12, 2023, 10:33:23 pm I have paid some attention to these but the ones I have seen have an on/off switch.Maybe check irv2.com
Re: Macerator Reply #2 – May 13, 2023, 12:05:21 pm Steve,I use a Flojet to dump my tank when necessary at home. It must be turned on and off, since the waste is pumped through a long garden type hose. I pump it about 100" to the cleanout next to my house. It is a good product and works well, but will not flow sewage by gravity alone. I keep a dedicated garden hose for this use, because sewage is pumped through the hose.Amazon.com: Flojet 18555-000A Portable RV Waste Pump with Garden Hose...Harold As an Amazon Associate Lazy Daze Owners' Group earns from qualifying purchases.
Re: Macerator Reply #3 – May 13, 2023, 12:20:11 pm I assume the 75' run is not downhill, as that would make things much easier. You could certainly build a macerator on demand system, but I don't think you'll find something off the shelf. In the situation you describe, I would probably use an external holding tank (like a blue-boy tank) to hold the waste and manually switched macerator to pump out the blueboy when it's full. If you decide to build something, check boat supply places to ideas and parts. Rich
Re: Macerator Reply #4 – May 13, 2023, 04:44:01 pm Quote from: rich - May 13, 2023, 12:20:11 pmIn the situation you describe, I would probably use an external holding tank (like a blue-boy tank) to hold the waste and manually switched the macerator to pump out the blueboy when it's full. Using an outboard tank is a better way of doing this, macerators are normally used to move quantities of waste, not small amounts. A freshwater flush connection for the tank is suggested as well as a dedicated 3/4" hose to be used for dumping only.I would install the pump so it can be easily opened up to clean the impeller, they can get jammed up with hair and the occasional piece of loose dental floss or?Larry
Re: Macerator Reply #5 – May 14, 2023, 06:52:24 pm Harold you mentioned…”It must be turned on and off, since the waste is pumped through a long garden type hose”.Just curious if you have to cycle the FloJet for a similar reason as I had done. I have the FloJet as well and use a dedicated garden hose to run approximately 60+ feet to the clean out at the back of the house. I had found it necessary to cycle the Macerator off when its motor got too warm (it actually shut itself off). This created a long and tedious dump cycle at home. Often it would take 30 minutes or more to complete a single dump cycle.Frustrated by the overheating, I looked for a solution to the problem. I stumbled upon placing a wet microfiber or similar towel over the motor while dumping in an attempt to cool its motor. This simple task eliminated the overheating and reduced the dump cycle to about three minutes (as the FloJet had been touted to accomplish). Now I can dump and back flush the system in under ten minutes. Sure makes a huge difference and reduces the frustration of dumping at home to a more pleasurable experience (if that’s possible).Just a thought.Kent
Re: Macerator Reply #6 – May 14, 2023, 07:02:02 pm Quote from: Kent Heckethorn - May 14, 2023, 06:52:24 pmI have the FloJet as well and use a dedicated garden hose to run approximately 60+ feet to the clean out at the back of the house. I had found it necessary to cycle the Macerator off when its motor got too warm (it actually shut itself off). This created a long and tedious dump cycle at home. Often it would take 30 minutes or more to complete a single dump cycle.I had problems with the macerator overheating when using a 50’ 5/8” hose, switching to a 3/4” hose eliminated the problem. Too much internal friction in the smaller diameter hose.We regularly dump and flush at home.Larry
Re: Macerator Reply #7 – May 16, 2023, 12:25:23 am Thanks for the replies. I’ve heard good things about the flojet and plan to get one. I’m also going to take the advice of an external tank.
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