Lessons learned (the hard way) using a submersible dirty water pump to empty (thick soupy branch-entangled) pool swamp

Gary Davis

Well-known member
Aug 29, 2022
186
Modesto, California
Pool Size
25000
Surface
Plaster
Chlorine
Liquid Chlorine
The pool lay fallow for almost two years with the old pump left in the water.
When we pulled it out, something was shorted.
I took it apart (it's built like a brick outhouse).
I can't find the short.

So I bought a new one.
I LOVE the new pump.

Not only is it 1.6HP instead of 1.0HP, but most important, the CORD is longer!
A lot longer!

This makes all the difference.
The old pump's 10-foot cord was a PITA trying to keep out of the 9-foot-deep pool.
The new pump's 25-foot cord has no problem being kept out of the water.

Oh what a difference in convenience (and safety!).

This is a big deal.
I didn't even know how big it was, in fact, until I used the new pump.

Which is why I'm writing this thread.
I want OTHERS to know that the cord is everything (as is the horsepower).

Here's what I learned that I'd like to impart to others who read this when they're in the market for a good pump.
  • 1. Old pump
    • 1HP/5.5Amp 120VAC/60Hz Submersible Dirty Water Pump with Float Switch
    • Harbor Freight Item 69300, PacificHydroStar
    • Handles solids up to 5/8th inch
    • 2910 gallons per hour
    • 1-1/2 inch NPT discharge port
    • 26 feet maximum head lift
    • Minimum water height 3 inches
    • Rated pressure 6.2 PSI
    • Power cord length 10 feet
    • Float switch for automatic operating
    • Corrosion-resistant stainless steel housing
    • Carry handle for easy transport
    • Includes three stepped adapters, fits 1-1/2 inch hose, 1 inch NTP and 1 inch hose
  • 2. New pump
    • 1.6HP/5.5Amp 120VAC/60Hz Submersible Dirty Water Pump with Float Switch
    • Lanchez Stainless Steel Sump Pump, Q1100B56AL-L
    • Handles solids up to 5/8th inch
    • 5500 gallons per hour (maximum fluid temperature 95F)
    • 1-1/2 inch NPT discharge port
    • 30 feet maximum head lift (maximum submersion depth 23 feet)
    • Minimum water height 3 inches
    • Rated pressure 6.2 PSI
    • Power cord length 25 feet
    • Float switch for automatic operating
    • Corrosion-resistant stainless steel housing
    • Carry handle for easy transport
    • NPT 1-1/2 inch, NPT 1 inch, NPT 3/4 inch
As far as I can tell, the three big differences are:
  1. 25-foot sealed power cord versus 10 feet
  2. 5500 gallons per hour versus 2910 gph
  3. 1.6 horsepower versus 1.0 horsepower
I don't remember what I had paid for the Harbor Freight pump but I don't think it was over $100 where the new pump (five years or so later) was under $100 also; so I don't consider the price as being meaningfully different.

While you'd think the gallons per minute (and head) would be meaningful, in my experience, the gallons per minute (and head) for each are fine, in that all I'm doing is pumping the water up ten feet out of the pool, and another couple of feet to get around things, and then it just pumps onto the ground to add to the groundwater supply (there are no public utilities out here). What matters most is the unbroken (sealed) power cord length.
 

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