What are the primary effeciency differences between this style pump (pump at the basin) and the Basepump models (pump at the ejection level)?
765679
It's definitely not as efficient as a 1/2 horse ele. pump, but it works well for it's intended purpose, when the power goes out, it does the job! No rushing like hell to get the generator going! It specific to use 30-100 psi water pressure.
765680
At 40 psi and a 10' head (typical for a sump pump), this unit will move about 560 gph. The smallest Basepump (RB 750) will move 750 gph of sump water at the same pressure. I initially looked at this unit, but went with the Basepump HB 1000 instead as it will move 1000 gph and is of a higher quality. Additionally, the reviews for the Liberty frequently mention problems with the float valve. The float system on the Basepump does not have the same issues and is extremely well made. Also, it is not operating against the full flow of motive water; it simply acts as a pilot system to actuate a much more reliable type of main valve. At 40 psi and a 10' head (typical for a sump pump), this unit will move about 560 gph. The smallest Basepump (RB 750) will move 750 gph of sump water at the same pressure. I initially looked at this unit, but went with the Basepump HB 1000 instead as it will move 1000 gph and is of a higher quality. Additionally, the reviews for the Liberty frequently mention problems with the float valve. The float system on the Basepump does not have the same issues and is extremely well made. Also, it is not operating against the full flow of motive water; it simply acts as a pilot system to actuate a... » Read More At 40 psi and a 10' head (typical for a sump pump), this unit will move about 560 gph. The smallest Basepump (RB 750) will move 750 gph of sump water at the same pressure. I initially looked at this unit, but went with the Basepump HB 1000 instead as it will move 1000 gph and is of a higher quality. Additionally, the reviews for the Liberty frequently mention problems with the float valve. The float system on the Basepump does not have the same issues and is extremely well made. Also, it is not operating against the full flow of motive water; it simply acts as a pilot system to actuate a much more reliable type of main valve. « Show Less
765681
I'm not familiar with a the other style pump . I chose this unit because of its volume and its use of three quarter inch water line .
765682
The primary difference is that this unit needs no electricity to draw the water from the sump hole. In a power outage, this one releases fresh water into the drain which draws the standing water in the hole along with it. It is an emergency backup to your existing sump pump and should not be used alone.
765683
This pump is primary for a backup and uses water pressure to run. Effeciency is based on water pressure and should not be used if you have your own well.
398929
No, this unit is very comparable in size to the two other units I have owned in the past (B60 and B70). So far this has been the best of the bunch with the B60 coming in a distant second. I love the concept of these machines, I just hope this pump holds out a lot longer than the rest of the ones I have owned did.
999556
Not sure but I have only seen the pumps. You should go to manufacturer's site to see if you can get more details. Sorry!
1779587
The only difference that I encountered was the position of the pipes. I had to rearrange the pipes from the discharge of my pump to the the opposite side.
441303
20 feet - that is why the 20 is in the model number.I have seen a graph of its pumping ability.
1496413
It's really up you what you like better. I bought a double breast pump thinking that at work every day, this would be faster. The one I bought had attachments to turn it into a hand pump in case of no electricity. I tried both ways and decided that I like the hand pump (single breast) better and I can use the other hand to continue working. The single pumps are usually cheaper but if this isn't an issue and getting it done faster is more appealing, then buy a double. This is the one I bought. Philips Avent ISIS iQ Duo Twin Electric Breast Pump, BPA Free - White
716800
That's exactly the model I had. Fits perfectly and is a better pump. I found this pump at my local Ace hardware, of all places, so was able to take measurements b4 buying it cheaper at Amazon. You'll be happy with it.
1307722
I don't have this system yet but am looking at it. I saw this question posted on the 28401E model and it was stated that the difference between the two was that the 28401E is an older model and the 28403E is the newer model. The newer 28403E has a water softening system on it.
1181187
The "c" model uses a CAT brand pump. These are very reliable, rebuildable, and professionals usually prefer them over other brands. The "A" model uses an Annovi Reverberi pump. Annovi Reverberi is an Italian company. They also produce a high quality rebuildable pump. I'm not sure where either pump is made. Cat pumps used to be made in the US, but I'm not sure anymore. They've probably moved manufacturing to china like everyone else. Either way, these are two of the best pumps you can buy. I went with the CAT model since CAT is an American company and they seem to be the pro's choice.
1501770
single stage vs 2 stage comes down to efficiency. 2 stage will draw down faster. I do auto a/c work using this pump; if you have a tight system it draws down plenty fast enough.
286848
I had the HNE-L STA-RITE equivalent for about 10 years before it died.The SNE-L actually has a 1 hp motor where the HNE-L is actually a 1 1/2 hp motor but advertised as 1hp.I have installed the HNE-L in my sprinkler system and can't tell the difference.It seems to have plenty of output and quieter than the other.Very happy with the pump and the fast delivery from the vendor.
874280
We have the 5L and don't have a problem with the number of gallons per minute that it produces. I think the only difference is the 10L pumps out 2.5 gpm but I could be wrong. Hope this helps. We use it for an outdoor shower at our farm and love it!
1038976
4 feet in the air is a long distance to pump for a 900. I had one but it didn't pump very well from my sump so I got an 1100. And I'm only pumping about 3 feet.
424371
yes the small one has a smaller air chamber and takes a significant amount of pumping and effort to get the tire to the proper psi. the size is perfect for carrying as a just in case pump. I would not use this as my primary pump unless your tires are very good at holding air. the size of the pump is amazingly small and very light just the perfect pump to carry in a backpack or attach to a bike. Just don't expect it to be easy or fast when pumping up your tire is all.
929799
Not sure what the difference is, but I have been running the $49.15 pump for going on 2 years with absolutely no problems. Hope this helps...
1584660
there is no difference Name : SHURFLO REVOLUTION Pump Model Numbers OEM/Aftermarket : 4008-101-A65, 4008-101-E65 Voltage : 12 VDC Dimensions Inches/Millimeters : 4.9" x 8.1" x 4.3" [125 x 206 x 110mm] Flow Rate GPM/LPM : 3.0 GPM [11.4 LPM] Amps (Max.) : 7.5 Shut-Off Pressure : 55 PSI [3.1 BAR]
1694331
It will work just fine for both. I have an older version with a blue top and the pump had worn out, so I looked at pics of the pump replacement and it looked just like the one I had so I ordered it. It works just fine, great in fact. I hadn't realized how slow the first one was getting!