Does anyone have a handle on the different submersible pump lines for both Grundfos and Myers? In other words, what is their best line, next best, etc. within each company, and also if any of these lines are "floating stack" pump types as recommended by Cary Austin (as opposed to "floating stage with thrust pads" type pumps) for longer life?
I've looked at both companies websites and downloaded some of their recent documentation/data booklets, and I'm still not a whole lot wiser. Grundfos information for North America is the hardest to find, but both companies are completely unclear about which are their top lines vs. entry level. If you buy an iPhone, it's pretty clear which model is the top model, and which model has less features and/or lower quality. They tell you right up front so you can make a decision based on your budget.
Generally, I'm looking at 3" or 4" submersible pumps for well water, 5 gpm - 30 gpm, 1/2 hp - 3 hp range, residential and some irrigation. I agree with the CSV concept as opposed to questionable VFD's, so not particularly interested in variable speed pumps or control boxes (I don't think). Current case is a shallow well application, but there will probably be other applications later. My philosophy is putting the water system and septic systems in for a new build are "one time" deals, that I don't want to have to worry about for at least 20 years. So I'm not concerned about $500 here or there. More important in my mind is to get the very best quality and design for these systems at the start. I'll trim the budget on light fixtures and floor tile when the wife gets involved, lol.
For example, it's still not clear what the difference between the Grundfos "SP" line and their "SQ" line (other than the obvious 4" vs. 3" diameter). Assuming you have at least a 5" casing, is there any reason you would go to an SQ pump instead of an SP pump? And which line would work better with a CSV1A valve?
In Myers case, I THINK the Predator Plus line is their top line, but who knows? Or is the Rustler line better? Again, which model is better suited to work with a CSV1A valve?
Below are links to the most recent data for North America from both of their websites:
Grundfos "SP": https://api.grundfos.com/literature/Grundfosliterature-5605835.pdf
Grundfos "SQ": https://api.grundfos.com/literature/Grundfosliterature-5935105.pdf
Myers "Predator Plus": https://www.pentair.com/content/dam/extranet/nam/myers/data-sheets/m9108ws-predator-series-ds.pdf
Myers "Rustler": https://www.pentair.com/content/dam/extranet/nam/myers/data-sheets/m9109ws-rustler-series-ds.pdf
I've looked at both companies websites and downloaded some of their recent documentation/data booklets, and I'm still not a whole lot wiser. Grundfos information for North America is the hardest to find, but both companies are completely unclear about which are their top lines vs. entry level. If you buy an iPhone, it's pretty clear which model is the top model, and which model has less features and/or lower quality. They tell you right up front so you can make a decision based on your budget.
Generally, I'm looking at 3" or 4" submersible pumps for well water, 5 gpm - 30 gpm, 1/2 hp - 3 hp range, residential and some irrigation. I agree with the CSV concept as opposed to questionable VFD's, so not particularly interested in variable speed pumps or control boxes (I don't think). Current case is a shallow well application, but there will probably be other applications later. My philosophy is putting the water system and septic systems in for a new build are "one time" deals, that I don't want to have to worry about for at least 20 years. So I'm not concerned about $500 here or there. More important in my mind is to get the very best quality and design for these systems at the start. I'll trim the budget on light fixtures and floor tile when the wife gets involved, lol.
For example, it's still not clear what the difference between the Grundfos "SP" line and their "SQ" line (other than the obvious 4" vs. 3" diameter). Assuming you have at least a 5" casing, is there any reason you would go to an SQ pump instead of an SP pump? And which line would work better with a CSV1A valve?
In Myers case, I THINK the Predator Plus line is their top line, but who knows? Or is the Rustler line better? Again, which model is better suited to work with a CSV1A valve?
Below are links to the most recent data for North America from both of their websites:
Grundfos "SP": https://api.grundfos.com/literature/Grundfosliterature-5605835.pdf
Grundfos "SQ": https://api.grundfos.com/literature/Grundfosliterature-5935105.pdf
Myers "Predator Plus": https://www.pentair.com/content/dam/extranet/nam/myers/data-sheets/m9108ws-predator-series-ds.pdf
Myers "Rustler": https://www.pentair.com/content/dam/extranet/nam/myers/data-sheets/m9109ws-rustler-series-ds.pdf