System	Predator Unleashed	Predator CP	Predator	Accelerator 2036	Dominator	SplitSteam
Motor Model	20 H.P. Kohler Command PRO	18 H.P. Kohler Command PRO	18 H.P. Kohler Command PRO	20 H.P. Kohler Command PRO	27 H.P. Kohler Command Pro	27 H.P. Kohler Command PRO
Blower Model	MD Pneumatics 3006	MD Pneumatics 3003 or 3006	MD Pneumatics 3003 or 3006	MD Pneumatics 3006	MD Pneumatics 4007	MD Pneumatics 3006
Usable Recovery	Unlimited	Unlimited	56 gal.*	70 gal.*†	120 gal.*	180 gal.*
Cleaning Range	500 ft.	300 ft. or 500 ft.	300 ft. or 500 ft.	600 ft.	800 ft. or 400 x 2	500 x 2
Heater Size	220,000 BTU	120,000 BTU	120,000 BTU	120,000†† BTU	260,000 BTU	350,000 BTU
Useable Heat**	240°F	160°F	160°F	180°F	260°F 220°F x 2	240°F x 2
Silencer	(2) Mufflers	Muffler	Muffler	Industrial Silencer	(2) Indust. Silencers	(2) Indust. Silencers
Hose	200 ft. Vacuum 200 ft. Solution 100 ft. Water	150 ft. Vacuum 150 ft. Solution 100 ft. Water	150 ft. Vacuum 150 ft. Solution 100 ft. Water	200 ft. Vacuum 200 ft. Solution 100 ft. Water	300 ft. Vacuum 300 ft. Solution 100 ft. Water	400 ft. Vacuum 400 ft. Solution 100 ft. Water
Wand	Upgraded DB	Standard DB	Standard DB	Upgraded DB	Upgraded DB	(2) Upgraded DB
Reels	(1x) Vac, (2x) Solution 200 ft. capacity	(1x) Vac, (2x) Solution 200 ft. capacity	(1x) Vac, (2x) Solution 200 ft. capacity	(1x) Vac, (2x) Solution: Live 250 ft. capacity	(1x) Vac, (2x) Solution: Live 350 ft. capacity	(1x) Vac, (3x) Solution: Live 350 ft. capacity
System Weight	650 lbs.	600 lbs.	550 lbs.	850 lbs.	1200 lbs	1400 lbs
Footprint	20"W x 59"L	20"W x 57"L	20"W x 62"L	20"W x 62"L	28"Wª x 58"L	32"Wª x 57"L

* Usable capacity, not total capacity
** Temp @ 600p.s.i. ATM / #6 Jet
† Upgradeable to 95 gal.
†† Upgradeable to 260,000 BTU / 240°F
ª Due to the unique design of the recovery tank, 7" of it's effective width is under the seats of the van which results in a smaller "effective" system footprint, than the actual footprint.

Recovery Capacity
Many manufacturers, when quoting recovery tank capacity, quote the capacity of the entire tank and ignore the fact that this figure cannot be correct when recovery tank filters are inside the tank, as most are. If there is a filter in a tank, the upper portion of that tank, from about 3 inches below the filter itself, all the way to the top of the tank, cannot be used for recovery capacity. As a result, capacity is lost. As you can see, this means that to quote a figure as if the entire tank is available for use is incorrect.

A good rule of thumb is that from 8 (for basic number 3 vacuum pumps) to 10 inches (for large number 3's and number 4 vacuum pumps) of height of the tank is not usable for actual capacity, due to filter height.  It's easy to see for yourself with the following:

1 cubic foot (12" x 12" x 12", which is 1,728 cubic inches) contains 7.5 gallons. So, if you divide 1,728 by 7.5 gallons, you'll find that a gallon is 230.4 cubic inches.

For example, a "65 gallon recovery tank", that is 12" thick, 36" high and 36" long would seem to have about 65 gallons of available capacity. However, taking into account capacity lost (8 inches of height) due to an internal filter, there is only 52.5 gallons of usable capacity.

Here is how that figure is calculated:

When we quote usable capacity for our tanks, we've taken all of this into account to give you "real world" figures.

Cleaning Range
These figures represent the maximum distance that we feel (due to customer feedback) our systems can clean from the van and provide satifactory cleaning. "Satisfactory cleaning" is defined here as cleaning that is not substantially diminished from optimal cleaning distances. This is not to say that these systems cannot clean at longer distances than those listed below as "Cleaning Range". But beyond these recommended distances, there will be a noticeable and rapid decrease in cleaning quality, due to reduced vacuum effeciency.

Useable Heat
From the standpoint of soil removal, flow rate is the true "muscle" of any steam cleaning system. Low flow rates result in less impact available to break soils free and less volume to rinse them away. But as flow rates are increased, temperature levels tend to drop on all but the highest capacity heat systems available today. It is misleading to quote temperature output, without including the rate of flow at that temperature. In lieu of that, wand jet size(s) and delivered pressure is a relatively good second set of specifications to be given, since approximate flow rate can be inferred from that information.

It is not unusual to find systems with lower heat capability being coupled with wands that have relatively small spray jets. For instance, jet size equivalents of "#4", or even "#3" are used at times. The larger the jet size, the more flow is allowed through the jet. And the numbering system is approximately uniform in increments upward or downward. (For instance, a #3 equivalent has 3/4 as much flow as a #4 equivalent. And a #4 equivalent has only 2/3 as much as a #6.)

Just as there is heat loss, there is also a pressure loss between the machine and the wand, resulting in typical pressure at the wand ("ATW") of about 150 PSI less than ATM (at the machine), based upon 150 feet of 1/4" hose.

All of our systems output temperatures are evaluated at the wand valve, at a standard pressure of 600 PSI (indicated at the machine ("ATM")) through an #06 Veejet or equivalent (2 , #3 jets = #6), at a distance of 150 feet from the truck, using 1/4" pressure hose. Resulting flow rate for our evaluations below is therefore assumed to be 400 P.S.I. (allowing for error) through the jet, for a net flow rate of about 1.8 GPM.

Footprint
"Footprint" is the definition of the actual floor space that is taken up by the machine. For our systems, this includes the recovery tank, and the heater, if the heater is mounted on the system frame. "Effective footprint" is a term that applies to our systems that use across- the- van recovery tanks. In this configuration (indicated in the chart by 4 asterisks), the tanks contour the slope of the back of the driver and passenger seats, resulting in a utilization of space that is not available with conventional recovery tanks. This utilized space, is, in effect, "free space", and is subtracted from the "actual footprint" specifications.