Johnson Macerator Pump

	JPI-102445301 JPI-102445301 $113.24 / ea for 1 ea and more In stock   qty.

Questions & Answers about Johnson Macerator Pump: 2013-02-17 A shopper asked: How far can it pump the waste? +Expand Answers 2013-02-23 SAMUEL PICKENS: It pumps 10 gpm; this is at a given NPSH (net positive suction head). Distance has determining factors. Is the discharge upward and have back pressure? Level or down hill? Your question does not have a specif answer. 2013-02-27 DENNIS SULLIVAN: I pump fish / bait over ten feet until it is discharged overboard. Would believe it could pump twice that distance. 2013-01-23 GREG RAC asked: the pump starts automatically when it detects waste water? +Expand Answers 2013-01-24 ALAN FOISY: It needs to be controlled by a momentary switch The design is so you have to hold switch down so you pay attention It does not detect water 2013-01-24 SAMUEL PICKENS: No as a rule. When your tank is near full, you turn it on. If you have a tank with instrumentation that would turn it on automatically; you would also need a by-pass or command switch ---- you do not want this pump to turn-on at its will. Ergo: turns on in the marina or yacht club or trolling in the channel past the restaurants. You get the idea. Mine only turns on via push and hold button. 2013-01-25 DENNIS SULLIVAN: pump does not automatically start unless it is wired to a float switch or other devise. I have it wired to a toggle switch that is manually operated.. 2013-01-25 ANDRE ROUSSEL: Greg ... The pump is just that, only a pump. I bought one for a macerator application in a fishbox. The external switch on my dash turns the pump on/off. If you're using it in a waste tank, you probably have the same wiring scheme ... a switch to activate it for transfer. The only application of which I can think would have an automated on/off, would be as a bilge pump and you'd still have an external switch. Hope that helps. Andy R. 2012-11-13 A shopper asked: Are the four through bolts brass or stainless. For all troubles i have had with Jabsco macerator is chemical damage to these bolts breaking off and allowing the macerator to twist and jam up? +Expand Answers 2012-11-26 Nathan Fournier: The pump comes with (4) grommets to pop in and then slide over and lock in place in the screw holes, however it does not come with the actual screws, you will need (4) #10 screws preferably stainless or grade 8 if you want them really strong and you can use some Tef-Gel to put up a barrier coat, this will prevent any issues with the bolts/screws as far as dissimilar metals and prevent galling or any other issues, thank you. 2013-01-24 SAMUEL PICKENS: Your boat dictates: one can attach to a treated 1" plywood and make foot pads that level the pump and glue to the hull.... no bolting to the boat itself thus no damage structurally. 2012-08-31 A shopper asked: is this 24v? +Expand Answers 2012-09-01 Jack Haworth: The pump I purchased was:JPI-102445301 JOHNSON 10 GPM MACERATOR PUMP It is a 12VDC pump. Sometimes there are alternate voltages available, you can usually find this in the catalog wit a little dinking around. Look for a button labelled "specifications." 2012-09-11 DENNIS SULLIVAN: 12v 2013-01-24 SAMUEL PICKENS: If you have a 48 or 24 V system; you can tap into one of the 12V batteries. Sometimes a Ziner diode can protect to provide current only in one direction. Or you can use a gel battery and trickle charge. 2012-07-20 A shopper asked: The specs refer to a brass shredder. Surely this will corrode due to contact with effluent? Does anyone have experience on longevity? Andy +Expand Answers 2012-07-20 DENNIS SULLIVAN: Brass is used in most thru hull applications and more durable than other metals. It's application here is fine and will last for years. 2012-07-20 ANDRE ROUSSEL: Hi Andy, I replaced a unit that survived for 8 years, and it wasn't the shredder that failed. I used the same Johnson unit and have been happy with it. Another Andy 2012-07-21 Jack Haworth: I have only used mine for a little over a year, and have not experienced any problems with it. After use I run a gallon or so of tap water through it. Brass is used in a lot of marine environments so I don't think it should be a problem. 2013-01-24 SAMUEL PICKENS: Brass when soft material is needed as a break-away. Else Navy Bronze also called brass by most. There is a difference and location is dependent on application. 2012-04-17 JAY JONES JAY J asked: How to install it between the existing tank and discharge pump out fitting on boat? +Expand Answers 2012-04-17 ANDRE ROUSSEL: I have a small access port in front of my outboards that I used. It was very tight and awkward, but I got the old one out and new one in. I suspect you can go to a different location, provided you're lower than whatever you e 2012-04-18 SAMUEL PICKENS: It is extremely straight-forward. If you are replacing an old one you should already have adequate wiring. If not; you'll need wiring ~12 ga and a switch. I use a push-and-hold type so it won't run unless you hold the button in. This way you can't forget or burn-up the pump. The suction line needs to be one that won't collapse (wire re-inforced). All else is simple. Ensure proper elevation for NPSH requirements. Will only lift so far from bottom of tank to center of pump. 2012-01-02 A shopper asked: Does the pump have run dry capability? +Expand Answers 2012-01-03 SAMUEL PICKENS: It is capable of running dry but not recommended. Check OEM specification and all operational instructions. Positive displacement pumps in theory should not run dry. It will cause accelerated wear. 2011-10-04 JOHN HAWORTH asked: What size fuse would you recommend? +Expand Answers 2011-11-07 Jack Haworth: manufacturer reccomends 25 amp 2011-11-21 Jack Haworth: 20 Amp 2011-10-04 A shopper asked: What is the minimum size hose one should discharge to. Is 3/4 inch 25 ft ID OK? +Expand Answers 2011-11-04 SAMUEL PICKENS: No, it isn't recommended. Do not go below one inch. Head is very important as well. Look at the pump's specifications and do not think you can deviate from them and be a happy camper. Twenty-five feet is a long run. What is the suction head? Input can and will affect output. The pump can only do so much within design parameters. Take your measurements and compare against OEM and if you're boarderline; call the factory and ask specifics based on suction height (head) and length against discharge distance and height to outlet nozzel. 2013-01-24 SAMUEL PICKENS: There's NPSHA and NPSHR (net positive suction head..... available....... required). If the spec requires 2' for example and you physical location is 3' ---- to work around this you may need a priming system or method. Else, you will have excessive 'run-dry' times and short life if it would work. 2011-07-11 A shopper asked: Is it self-priming? +Expand Answers 2011-07-15 Jack Mann: yes

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