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43 votes

Can I use two 30A breakers together for a 60A water pump?

No, and the level of "not understand what you are doing" is concerning. 60A at 240V (220 is at least 50 years out of date) is also 60A at 120V, twice. Two 30A 120V breakers are exactly ...
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  • 132k
25 votes

Can I gain AC efficiency by spraying condensate water on the outdoor coils?

Clamp Power Meter Buy or borrow a clamp power-meter with a "kWh" feature, that is, the ability to perform an energy measurement. Not all clamp meters have this, e.g. a "True RMS" ...
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  • 10.2k
18 votes

Can I use two 30A breakers together for a 60A water pump?

The right breaker is $12. (I'm being generous here) you are confused about how 120/240V split-phase works. A lot of people think you multiply amps by 2 when going from 1 phase to 2 phases, or the ...
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15 votes

Can I gain AC efficiency by spraying condensate water on the outdoor coils?

See other answer for how to test for actual efficiency gain, but you're basically cooling your output coil with a swamp cooler. In commercial settings it's called a free cooler. Water is either ...
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  • 2,203
14 votes

Can I gain AC efficiency by spraying condensate water on the outdoor coils?

Disclaimer: This question is about Air Conditioners. The "You" discussed below is an air conditioner owner. This answer is not about heat pumps, which are a different class of equipment (...
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9 votes

Can I gain AC efficiency by spraying condensate water on the outdoor coils?

If you gather and archive a local source of weather data, and operate the mist system on alternate days for a while, you should be able to gather a pretty good sense of the effect on power use, ...
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  • 132k
6 votes

What shouldn’t be dumped into a basement dump sink?

Sewer pumps are designed for specific uses and their ability to handle different liquids and solids varies hugely. Read the documentation for your specific one. The most common enemies: For all ...
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  • 16.9k
5 votes

Foot valve leaking? Other solutions to priming pump

Option 1 - better foot valve, or better seal/gasket in the foot valve you have. Option 2 - set up an easy priming solution, if 3 days between pump starts is typical. i.e. have a reserve tank (above ...
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  • 132k
4 votes

Can I gain AC efficiency by spraying condensate water on the outdoor coils?

should this come out ahead since the water is "free" as condensate? Probably. Your logic is sound.. As others have mentioned, heat pumps are already quite efficient, and the most you can ...
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  • 141
3 votes

How to address low flow from a circulating pump

I take it your "so-called-plumbers" did not install vents on the high points of the loop? Seems like they might be unfamiliar with hydronic heat, rather than water supply plumbing. Air ...
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  • 132k
2 votes

Can some wet/dry vacs indeed continuously pump water?

Given your use case, you might be better off with a small utility water transfer pump. These are small, connect inline with garden hoses, and are relatively inexpensive.
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  • 4,272
2 votes

GFCI won’t turn on

There is always the possibility that your new GFCI breaker is bad. But far more likely is that you have a fault - either improper wiring or an actual real ground fault. Based on your description, it ...
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2 votes

Can I gain AC efficiency by spraying condensate water on the outdoor coils?

Safer than going to the distribution box is to use a true RMS AC current clamp meter such as this: https://www.amazon.com/KAIWEETS-Multimeter-Auto-ranging-Temperature-Capacitance/dp/B07Z398YWF/ ...
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  • 21
2 votes

What shouldn’t be dumped into a basement dump sink?

I would mainly be concerned with hair in a basement dump sink. If anyone using it has long hair I would strongly strongly suggest a basic drain filter. I bought a magnetic one that I thought was a ...
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  • 46.2k
2 votes
Accepted

Can I tie into current outlet for waste pump?

Other than cost, there should be no negative to putting in a new circuit for your waste pump. It looks like that existing outlet is already set up as a dedicated circuit (only one outlet, rather than ...
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  • 1,705
2 votes

Foot valve leaking? Other solutions to priming pump

Replace the foot valve with another newer one and make sure that it is protected by an inlet screen. Some pumps will self prime. Post a picture of your pump so we can see just what kind of pump you ...
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  • 12.1k
2 votes
Accepted

Reducing swimming pool pump output from 1.5 to 1 inch

It is unlikely to damage the pump; pump problems are much more likely to be caused by restricting the inlet. You will be reducing the outlet area by more than half so it will more than double the time ...
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  • 7,648
2 votes

Can I use two 30A breakers together for a 60A water pump?

No you should not. It increases the risk of failure. There would be 2 components that could fail instead of 1. And no matter how they are connected they will be working outside their intended scope. ...
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  • 121
2 votes

Submersible pump won't continue to run

Might have overheated - if so it should get better when it has a chance to cool down. You could try turning it off for an hour os so. Might be damaged in some other way, in which case it probably won'...
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  • 132k
2 votes

Placement of air pressure tank with respect to outlet of the water pressure pump

No, the pressure tank can really be located anywhere in the system that's convenient. You can also have more than one, if that works out better. Lacking a sense of what your setup is, let's say your ...
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  • 132k
2 votes

Pump to push inverter A/C dripping water?

Yes, there are all sorts of AC condensate pumps available that are designed to pump condensate up and out of your house. You would probably be better off tubing the condensate from outside inside to ...
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  • 53.1k
2 votes
Accepted

Repair Water Pump Electrical Cord

You seem to be comfortable enough to want to repair the cord instead of just pitching the pump & buying a new one, so I'd suggest that you completely replace the cord. Open the pump up, detach the ...
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  • 29.1k
2 votes

What kind of water pump should I use to supply a tankless water heater from a non-pressurized water source?

If you exceed the GPM rating of the heater, the water will not get the specified temperature rise that you are probably counting on. In the listing your provided it says: A 2GPM portable tankless ...
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  • 20.3k
1 vote

How do you bleed the air out of a Grundfos UPS15-58FC Circulating Pump?

Air vents in hot water circulation systems are, or should be, located at high points (sometimes local high points) in the system. They are pretty much never right at the pump, in my experience. ...
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  • 132k
1 vote

Should I make holes in condensate pump's basin?

Borrowing from Z4-tier's opening, it may depend on the design of the condensate pump. If the plastic case of the pump has holes, then the water level in the plastic case will only get to the height of ...
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1 vote

Can a sump or pool pump be used in shallow water (less than 3 inches)?

DISCLAIMER: Not explicitly an answer to your question and definitely not what you're going to want to hear. Also, not a landscape expert. I believe that this is going to take some landscaping instead ...
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  • 29.1k
1 vote

Can a sump or pool pump be used in shallow water (less than 3 inches)?

I bought a utility pump from either Home Depot or Lowes, I don't remember which one, but it starts pumping at about 1-3/8" and turns off at 1/4". It is a Utilitech #0435062 automatic ...
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  • 12.1k
1 vote

Pressure pump runs every 5 seconds but moves no water

"The possibility of the air bladder being bad is excluded because the water pressure that the pump regulates appears correct." That is a false conclusion. The symptoms are pretty much ...
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  • 132k
1 vote

GFCI won’t turn on

Here's the nugget of info you might be missing: NEUTRAL-Ground faults will also trip a GFCI. We're used to taking neutral for granted and thinking only in terms of the hot wire. Switch the hot, put ...
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