A Smlift is a smaller version of a StinkSTOPper, without the buoy and without the stand.  It’s propeller orientation is a bit different than the StinkSTOPper, to allow installation and control to be performed through slatted floors in under-the-barn manure-holding-pits, to create the same WISE technology aeration within the pits.  The different configuration allows the propeller blades to be lower in the fluid, and allow the equipment to operate when the effluent is at a very shallow depth, allowing pits to be in aerobic condition when they are almost empty.

For reference of “how it works”, please refer to the StinkSTOPper page.

Yet, a significant difference is that pits do not have the same open access to the atmosphere and its wind/sun/oxygen supply that StinkSTOPpers have access to… so how can a Smlift work?

First, we must recognize that pit barn designers and builders install good ventilation systems, and there is always air flow from the animal living space above the floor, towards the manure pit below.  Odor (air) is not supposed to flow from the pit upward into the barn.    To make this happen in all situations, each pit has a fan pulling air out of it, creating a negative pressure.  So…. at all times, air flow out of the pit is required.  It keeps the pigs from dying from bad gasses (this is why pitted barns also stink… even though they don’t have open ponds)

In addition, when agitation occurs, often twice per year, so as to mix up the settled solids with the liquids on top….   additional ventilation is required to assure the nasty gasses don’t go up into the barn. Such gasses, even  a few inches above the floor would be deadly, since this is where the hog’s noses are when they eat, play, and sleep. The gasses reaching above the floor are especially dangerous when the hogs are small and first placed and living there. These gasses are potentially deadly, so additional Ventilation is absolutely required during Agitation.   This additional ventilation equipment is always present, but not always turned on, unless agitation is in operation.

Simply put… when Smlifts are installed into the pits, the additional ventilation fans might also be turned on, and can supply the required atmospheric air to oxygenate the everchanging effluent surface within the pit. With the additional airflow, the same activity provided by the StinkSTOPper on a pond  occurs in a pit, by the similar but unique design of the Smlift.

Smlifts turn a manure storage pit into an aerobic treatment pit, having no odor, and no noxious gases being created within it.  Neighbors have no issue with the larger ventilation fan pulling air across the pit’s surface because the pit has NO odors.  Herd health and worker health improves due to the elimination of ammonia gases and other nasty gases that are inherent with poorly ventilated pits.

Due to the startup limitations of PondLift LLC, focus is first for the more easily understood StinkSTOPper installations. Smlift installations are planned to coincide with spring 2016 emptying of pits, where they will be installed at select barns for determining design requirements, performance calibration, and performance testing.  Commercial sales will begin in late summer 2016.

As with the StinkSTOPper, photos of the Smlift do not show the patent pending details specific to its exceptional performance. And there is no buoy.  (Yet, you can see the tremendous activity offered in this manure pond.)




A submerged Smlift in the foreground, and a StinkSTOPper in the background.   Note the line of influence between the two.   This “line” where the two flows run into each other is very obvious!