Buy Grundfos MQ3-45 96860195 1 HP Pressure Booster Pump - 115 VoltGrundfos MQ3-45 96860195 1 HP Pressure Booster Pump - 115 Volt Product Description:
- Simple operation - self priming
- Built in dry run protection
- Automatic reset function
- Low noise level
- Built in pressure tank reduces number of starts
Product Description
The MQ is a complete, all-in-one unit, incorporating pump, motor, diaphragm tank, pressure and flow sensor, controller and check valve. Built in safeties ensure long life of the pump. These safeties include: dry running; excessive temperature; any overloa
Customer Reviews
Most helpful customer reviews
5 of 5 people found the following review helpful.
3 Years of Medium Duty Use and Dead!
By Jim
The Grundfos MQ is a good pump. My plumber installed one for me almost three years ago and it just died. Seems to be inline with what I've read from other sites. While it worked, it worked well and quietly, I just thought that it would have lasted a bit longer. Grundfos' website and all owner's manuals are just about worthless as far as answering simple questions and there's no phone support at all. Now I'll shock you with this, I'm buying another. I've already got all of the necessary piping, shut off valves, pressure guages, floor bolts, and prv valve in place. Nothing has changed with the units size/shape... Why pay to reconfigure all of this. I've come to the realization that I'll probably have to replace this every three years at a cost of $450. The upside is going from 30 psi, our water pressure from the street, to 65 psi. The difference between day and night. Without the prv it would be much higher, dangerously high. All things considered, that's the cost of having good water pressure.
3 of 3 people found the following review helpful.
Early Death of MQ3-45 after only 5 years
By MIT_engineer
While it lasted it was a good pump, used in my New Hampshire home radon remediation system. After about 5 years of operation, I noted that the water pressure in the shower was good for say 10-15 seconds, then went low for 2-3 seconds, then went back up to good for another 10-15 seconds, then low for 2-3 and so on and so on. Technician was not able to resuscitate the pump. After his work, the pump might work for 5 to 10 minutes without the hi/low pressure oscillation, but then would trip off and no water would flow in the shower, the sink, the toilets.I really would have thought such a pump would last longer than 5 years, so I am disappointed. I wonder if any other pump users have had better luck and longer life with pumps from other manufacturers. I hope you will write a review.MIT_engineer
3 of 3 people found the following review helpful.
Dependable, durable, compact, designed well...
By Little Old Lady
Grundfos is a premier pump manufacturer and this model is no exception. Well-designed, well-engineered, well-constructed, EVERYTHING you need for a well!!! For decades I used the old tried-and-true bladder tank and cast iron pump with a capacitor that would go out every few years (we have very undependable electricity in our area that is hard on such things). And then I happened to see one of these.While the up-front cost is more, it more than evens out over time with less maintenance costs. I also appreciate having just a small space in greenhouse used by this all-in-one pump, rather than the 3'x3'x4' space the previous conglomeration took (with additional hoses and connections to make, too). It's nice and neat. It keeps its prime, the pressure has not needed adjustment, and no maintenance was needed over an 8 year period. I liked my previous one (the one I've been talking about) so much I bought another one to use on a different system.The differences in models are the horsepower of the motor (depending on how deep the well is and how far you're raising the water to its point of use) and whether it's 110 or 220. That makes choosing pretty easy.
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