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Pumps and Water
Water management separates a cooler that lasts three seasons from one that lasts fifteen. Here is how to keep the pump moving water, the float holding level and minerals from taking over.
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Swamp Cooler Bleed-Off and Water Quality: How Much to Bleed and WhyBleed-off is a small, continuous drain of pan water that removes minerals left behind by evaporation. Without it, scale builds on pads and pumps. A common target keeps dissolved minerals at about 3 to 5 times the supply level, which means bleeding roughly 25% to 50% of the evaporation rate. Harder water needs more bleed-off.
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- How to Replace a Swamp Cooler Pump
Replace a swamp cooler pump in under an hour: confirm the pump is bad, choose the right replacement, swap it safely and test water flow over every pad.
- How to Choose a Replacement Swamp Cooler Pump: Flow, Voltage, Cord and Fit
Pick a replacement swamp cooler pump: match cooler size, voltage, cord and mounting, compare cooler and pond pumps, and know when a purge pump helps.
- Swamp Cooler Float Valve Adjustment: Setting the Water Level Right
Adjust a swamp cooler float valve to set the pan water level, stop overflow and low-water pump problems, and know when to replace the valve instead.
- Swamp Cooler Water Supply and Drain Lines: Tubing, Valves, Bleed-Off and Overflow
How to plumb a swamp cooler: tapping a cold line, 1/4 in copper vs poly tubing, shutoffs, float valve, pressure, backflow, bleed-off and overflow routing.
- Swamp Cooler Scale: How to Remove It Safely and Keep It From Coming Back
Remove swamp cooler scale without harming the pan: hardness math, descalers safe for galvanized steel vs plastic, vinegar caveats, inhibitors and bleed rates.
- How Much Water Does a Swamp Cooler Use? Gallons per Hour, per Day and per Season
Swamp cooler water use explained with the evaporation formula, bleed-off by water hardness, gallons per hour and day by cooler size, and what the water costs.