DIAL 115-Volt PowerClean Evaporative Cooler Purge Pump-1540 at The Home Depot
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Model # 1540

Internet # 100188085

Store SKU # 693538

115-Volt PowerClean Evaporative Cooler Purge Pump

DIAL 115-Volt PowerClean Evaporative Cooler Purge Pump

This item has been discontinued.
The Home Depot no longer carries this specific product.

$54.96 / each
Item cannot be shipped to the following state(s): AK,GU,HI,PR,VI


Model # 1540

Internet # 100188085

Store SKU # 693538

The PowerClean Purge Pump is the best product on the market for preventing scale and mineral buildup in your evaporative cooler. It does this by automatically flushing out the cooler’s old water at regularly timed intervals. Without it, scale will continually build up in the cooler pads, restricting the flow of cool air. The Purge Pump ensures against this by regularly flushing the old water out through the cooler drain and replenishing the cooler with fresh water. This 115 volt Purge Pump does not replace the regular pump but works alongside it.

  • For use with all brands of residential and commercial roof-top and window-mount coolers
  • Motor has thermal overload protection and a flame-retardant housing for safety
  • Regular pump attaches to the purge pump to activate the timer
  • Includes mesh pump basket, mounting bracket, 30 in. drain hose, and overflow pipe adapter for easy setup
  • 5 minute flush cycle is activated automatically after every 8 hours of cooler run time


Assembled Depth (in.)  4.8 in  Assembled Height (in.)  10 in 
Assembled Width (in.)  5.8 in  Evaporative Cooler Product Type  Part/Accessory 
Manufacturer Warranty  2 Year Warranty  Material  Other 
Part/Accessory Type  Other Part/Accessory  Product Depth (in.)  4.8 in 
Product Height (in.)  10 in  Product Weight (lb.)  2.6 lb 
Product Width (in.)  5.8 in  Returnable  90-Day 


Rated 2.2 out of 5 by 6 reviewers.
Rated 4 out of 5 by works good it works, good price, easy to install, good help from workers , June 17, 2014
Rated 5 out of 5 by purge pump installed it yesterday and it works great. you need to make sure that you have a main pump that will still pump water when its down to 1/2 inch in the tray because the purge pump pumps it down that far, but then most newer swamp coolers have that feature on there pumps. ill know in a month if it makes a difference in the pads. May 7, 2009
Rated 1 out of 5 by Would not recommend. Can't say as I am very happy with this pump. I went through 3 in one season. I completely protected the pump from water yet had plenty of air for cooling. They still burned up. The cost is high per unit. It's much cheaper to use a bleed off. Admittedly, living in Phoenix during the summer puts a lot of work on the pump but 3 in one season . . . I don't think so. F.Y.I. the regular pump continues working great season after season. April 26, 2013
Rated 1 out of 5 by Good Idea poor execution I have been a Desert Rat for over 40 years so I know evaporative coolers. We all hate scale build up, But this is not the product to lessen it. 1. I have owned this for over 3 months to give it a chance. 2. My water bill has DOUBLED 3. It has NOT lessened scale build up. In fact it is worse. This pump drains the pan for 7-8 minuets every 8 hours. The only adjustment is by using an optional drain clamp. Even with the clamp almost totally closed your pads still get dried out, which causes more scale build up. For the price of this pump there should be a time adjustment for the length of purge and time adjustment between purges. Maybe if these functions are included in the next model I will give it a try. Meanwhile this one is going back. July 30, 2012
Rated 1 out of 5 by Only lasted 2 months I purchased one of these pumps last summer, and it lasted about 2 months. Waste of money. The timer mechanism is mechanical, all gears similar to an old watch. Perhaps an electronic timer would make this a better product. They are expensive, and junk. July 4, 2013
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